inform((_:search,type,'Train'))
user
Can you help me with train schedules ?
system
I certainly can . What did you have in mind ?
inform((_:search,departure,'cambridge');(_:search,destination,'broxbourne');(_:search,type,'Train'))
user
I am looking for trains that depart from cambridge and go to broxbourne .
inform((_:result,amount,'several');(_:result,type,'Train')) request((_:search,day,?);(_:search,leave_at,?);(_:search,type,'Train'))
system
We 've got several trains going that route .   Is there a particular day or time you need ?
inform((_:search,day,'friday');(_:search,type,'Train'))
user
I need to go on Friday .
request((_:search,arrive_by,?);(_:search,leave_at,?);(_:search,type,'Train')) inform((_:result,departure,'cambridge');(_:result,type,'Train'))
system
What time will you be departing from cambridge ? Also what time do you need to arrive in broxbourne by ?
inform((_:search,arrive_by,'18:30');(_:search,type,'Train'))
user
I just need to arrive by 18:30 , the departure time does n't matter .
inform((_:result,amount,'several');(_:result,arrive_by,'16:01');(_:result,arrive_by,'17:01');(_:result,arrive_by,'18:01');(_:result,arrive_by,'18:30');(_:result,leave_at,'an hour before arrival time');(_:result,ticket,'17.90 pounds');(_:result,type,'Train'))
system
I have several that arrive before 18:30 . I have one that arrives at 16:01 , 17:01 , and 18:01 . They all leave an hour before arrival time and are 17.90 pounds .
inform((_:search,arrive_by,'18:01');(_:search,people,'4');(_:search,type,'Train'))
user
Can you book the train that will arrive at 18:01 and I need 4 tickets .
inform((_:booking,category,'Train');(_:booking,ref,'D3L643YZ');(_:booking,ticket,'71.59 GBP');(_:booking,type,'Booking'))
system
Your booking was successful and the total fee is 71.59 GBP , which is payable at the station . Your reference number is D3L643YZ .
inform((_:search,area,'north');(_:search,category,'guesthouse');(_:search,type,'Hotel'))
user
Thanks . I also need a guesthouse to stay in in the north .
inform((_:result,name,'acorn guest house');(_:result,type,'Hotel'))
system
How about the acorn guest house ?
inform((_:search,has_internet,'yes');(_:search,stars,'4');(_:search,type,'Hotel'))
user
Does it offer free wifi ? I 'd also like it to have 4 stars .
inform((_:result,type,'Hotel'))
system
Yes , it fits all those needs .
inform((_:search,day,'wednesday');(_:search,stay,'2');(_:search,type,'Hotel'))
user
Great .   Please book it for 2 nights starting on Wednesday .
request((_:booking,people,?);(_:booking,type,'Booking'))
system
How many people will be staying ?
inform((_:search,people,'four');(_:search,type,'Hotel'))
user
There will be a party of four .
inform((_:booking,ref,'8P7QUDHW');(_:booking,type,'Booking'))
system
Booking was successful . 
 Reference number is : 8P7QUDHW .
thank()
user
thanks for helping .
thank() reqmore()
system
You 're welcome ! Can I help you with anything else ?
thank()
user
No that was all thank you so much .
system
excellent , have a great day !
_:search type Train
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_:search destination broxbourne
_:search type Train
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_:result amount several
_:result type Train
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_:search type Train
_:search departure cambridge
_:search destination broxbourne
_:result amount several
_:search day friday
_:search leave_at ?
_:result departure cambridge
_:result type Train
_:search arrive_by 18:30
_:search type Train
_:search departure cambridge
_:search destination broxbourne
_:search day friday
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_:result amount several
_:result arrive_by 16:01
_:result arrive_by 17:01
_:result arrive_by 18:01
_:result arrive_by 18:30
_:result leave_at an hour before arrival time
_:result ticket 17.90 pounds
_:result type Train
_:search arrive_by 18:01
_:search people 4
_:search type Train
_:search departure cambridge
_:search destination broxbourne
_:search day friday
_:search leave_at ?
_:result departure cambridge
_:result amount several
_:result arrive_by 16:01
_:result arrive_by 17:01
_:result arrive_by 18:01
_:result arrive_by 18:30
_:result leave_at an hour before arrival time
_:result ticket 17.90 pounds
_:result type Train
_:search arrive_by 18:01
_:search people 4
_:booking category Train
_:booking ref D3L643YZ
_:booking ticket 71.59 GBP
_:booking type Booking
_:search area north
_:search category guesthouse
_:search type Hotel
_:search departure cambridge
_:search destination broxbourne
_:search day friday
_:search leave_at ?
_:result departure cambridge
_:result amount several
_:result arrive_by 16:01
_:result arrive_by 17:01
_:result arrive_by 18:01
_:result arrive_by 18:30
_:result leave_at an hour before arrival time
_:result ticket 17.90 pounds
_:search arrive_by 18:01
_:search people 4
_:booking category Train
_:booking ref D3L643YZ
_:booking ticket 71.59 GBP
_:booking type Booking
_:search area north
_:search category guesthouse
_:result name acorn guest house
_:result type Hotel
_:search has_internet yes
_:search stars 4
_:search type Hotel
_:search departure cambridge
_:search destination broxbourne
_:search leave_at ?
_:result departure cambridge
_:result amount several
_:result arrive_by 16:01
_:result arrive_by 17:01
_:result arrive_by 18:01
_:result arrive_by 18:30
_:result leave_at an hour before arrival time
_:result ticket 17.90 pounds
_:search arrive_by 18:01
_:search people 4
_:booking category Train
_:booking ref D3L643YZ
_:booking ticket 71.59 GBP
_:booking type Booking
_:search area north
_:search category guesthouse
_:result name acorn guest house
_:search has_internet yes
_:search stars 4
_:result type Hotel
_:search day wednesday
_:search stay 2
_:search type Hotel
_:search departure cambridge
_:search destination broxbourne
_:search leave_at ?
_:result departure cambridge
_:result amount several
_:result arrive_by 16:01
_:result arrive_by 17:01
_:result arrive_by 18:01
_:result arrive_by 18:30
_:result leave_at an hour before arrival time
_:result ticket 17.90 pounds
_:search arrive_by 18:01
_:booking category Train
_:booking ref D3L643YZ
_:booking ticket 71.59 GBP
_:search area north
_:search category guesthouse
_:result name acorn guest house
_:search has_internet yes
_:search stars 4
_:result type Hotel
_:search day wednesday
_:search stay 2
_:booking people ?
_:booking type Booking
_:search people four
_:search type Hotel
_:search departure cambridge
_:search destination broxbourne
_:search leave_at ?
_:result departure cambridge
_:result amount several
_:result arrive_by 16:01
_:result arrive_by 17:01
_:result arrive_by 18:01
_:result arrive_by 18:30
_:result leave_at an hour before arrival time
_:result ticket 17.90 pounds
_:search arrive_by 18:01
_:booking category Train
_:booking ticket 71.59 GBP
_:search area north
_:search category guesthouse
_:result name acorn guest house
_:search has_internet yes
_:search stars 4
_:result type Hotel
_:search day wednesday
_:search stay 2
_:booking people ?
_:search people four
_:search type Hotel
_:booking ref 8P7QUDHW
_:booking type Booking
_:search departure cambridge
_:search destination broxbourne
_:search leave_at ?
_:result departure cambridge
_:result amount several
_:result arrive_by 16:01
_:result arrive_by 17:01
_:result arrive_by 18:01
_:result arrive_by 18:30
_:result leave_at an hour before arrival time
_:result ticket 17.90 pounds
_:search arrive_by 18:01
_:booking category Train
_:booking ticket 71.59 GBP
_:search area north
_:search category guesthouse
_:result name acorn guest house
_:search has_internet yes
_:search stars 4
_:result type Hotel
_:search day wednesday
_:search stay 2
_:booking people ?
_:search people four
_:search type Hotel
_:booking ref 8P7QUDHW
_:booking type Booking
_:system inquired _:user