inform((_:search,departure,'cambridge');(_:search,destination,'broxbourne');(_:search,type,'Train'))
user
Hi , I need to find out information on trains leaving Cambridge and going to Broxbourne . Can you help me ?
inform((_:result,leave_at,'05:01');(_:result,leave_at,'09:01');(_:result,type,'Train')) request((_:search,leave_at,?);(_:search,type,'Train'))
system
Yes the first train leaves at 05:01 the last at 09:01 , did you have a particular time in mind ?
inform((_:search,leave_at,'11:45');(_:search,type,'Train'))
user
I was looking to leave after 11:45 but it seems that it is not possible .
request((_:search,day,?);(_:search,type,'Train'))
system
What day are you looking to depart ?
inform((_:search,day,'friday');(_:search,type,'Train'))
user
I would like to depart Friday .
inform((_:result,amount,'many');(_:result,departure,'Cambridge');(_:result,id,'TR4266');(_:result,leave_at,'12:01');(_:result,type,'Train')) offer((_:booking,category,'Train');(_:booking,type,'Booking'))
system
We do have many trains leaving after 11:45 . TR4266 leaves Cambridge at 12:01 . Would you like to book this train ?
inform((_:search,day,'sunday');(_:search,type,'Train'))
user
Er , sorry , I actually needed that train on Sunday , not Friday .
inform((_:result,arrive_by,'13:01');(_:result,departure,'Cambridge');(_:result,destination,'Broxbourne');(_:result,id,'TR2939');(_:result,leave_at,'12:01');(_:result,type,'Train')) request((_:search,people,?);(_:search,type,'Train'))
system
TR2939 leaves Cambridge at 12:01 and arrives at Broxbourne at 13:01 . For how many people would you like to purchase transport ?
inform((_:search,area,'north');(_:search,has_parking,'yes');(_:search,type,'Hotel'))
user
That 's all the info I needed on the train , I am also looking for a place to stay with free parking in the north .
inform((_:result,area,'north');(_:result,count,'11');(_:result,has_parking,'none');(_:result,type,'Hotel'))
system
There are 11 places with free parking in the north . Would you like a recommendation or would you rather narrow down your search ?
inform((_:search,category,'hotel');(_:search,has_internet,'yes');(_:search,type,'Hotel'))
user
I also need free wifi , and I would prefer a hotel if that is possible
inform((_:result,category,'guesthouses');(_:result,has_internet,'none');(_:result,has_parking,'none');(_:result,stars,'4');(_:result,type,'Hotel'))
system
Ashley Hotel in the north is moderately priced with 2 stars and provides free internet and parking . It is a hotel . Would you like for me to book it ? There is only one other hotel . It also has 2 stars . The remainder are guesthouses with free parking and internet mostly 4 stars .
inform((_:search,day,'wednesday');(_:search,name,'ashley hotel');(_:search,people,'8');(_:search,stay,'4');(_:search,type,'Hotel'))
user
Yes , can you book 4 nights at the Ashley Hotel starting on Wednesday ? 
  That is for 8 people .
canthelp((_:booking,type,'Booking')) request((_:booking,day,?);(_:booking,stay,?);(_:booking,type,'Booking'))
system
I can not process that booking , please change booking date or reduce the number of days .
inform((_:search,stay,'3');(_:search,type,'Hotel')) request((_:result,ref,?);(_:result,type,'Hotel'))
user
How about a 3 day stay instead ? Please get me the reference number if the booking is successful .
reqmore() inform((_:booking,name,'Ashley Hotel');(_:booking,people,'8');(_:booking,ref,'V499X99C');(_:booking,stay,'3');(_:booking,type,'Booking'))
system
No problem . For 3 days at Ashley Hotel with 8 people , you reference number is V499X99C . Can I help you with anything else ?
thank()
user
No , that is all I need , thank you !
system
We are happy to help . Thank you for using our service . Have a wonderful day !
_:search departure cambridge
_:search destination broxbourne
_:search type Train
_:search departure cambridge
_:search destination broxbourne
_:result leave_at 05:01
_:result leave_at 09:01
_:result type Train
_:search leave_at 11:45
_:search type Train
_:search departure cambridge
_:search destination broxbourne
_:result leave_at 05:01
_:result leave_at 09:01
_:result type Train
_:search leave_at 11:45
_:search day friday
_:search type Train
_:search departure cambridge
_:search destination broxbourne
_:search leave_at 11:45
_:result amount many
_:result departure Cambridge
_:result id TR4266
_:result leave_at 12:01
_:result type Train
_:system offered _:booking
_:booking category Train
_:booking type Booking
_:search day sunday
_:search type Train
_:search departure cambridge
_:search destination broxbourne
_:search leave_at 11:45
_:result amount many
_:system offered _:booking
_:booking category Train
_:booking type Booking
_:search day sunday
_:result arrive_by 13:01
_:result departure Cambridge
_:result destination Broxbourne
_:result id TR2939
_:result leave_at 12:01
_:result type Train
_:search people ?
_:search area north
_:search has_parking yes
_:search type Hotel
_:search departure cambridge
_:search destination broxbourne
_:search leave_at 11:45
_:result amount many
_:system offered _:booking
_:booking category Train
_:booking type Booking
_:search day sunday
_:result arrive_by 13:01
_:result departure Cambridge
_:result destination Broxbourne
_:result id TR2939
_:result leave_at 12:01
_:search people ?
_:search area north
_:search has_parking yes
_:result area north
_:result count 11
_:result has_parking none
_:result type Hotel
_:search category hotel
_:search has_internet yes
_:search type Hotel
_:search departure cambridge
_:search destination broxbourne
_:search leave_at 11:45
_:result amount many
_:system offered _:booking
_:booking category Train
_:booking type Booking
_:result arrive_by 13:01
_:result departure Cambridge
_:result destination Broxbourne
_:result id TR2939
_:result leave_at 12:01
_:search area north
_:search has_parking yes
_:result area north
_:result count 11
_:search category hotel
_:search has_internet yes
_:result category guesthouses
_:result has_internet none
_:result has_parking none
_:result stars 4
_:result type Hotel
_:search day wednesday
_:search name ashley hotel
_:search people 8
_:search stay 4
_:search type Hotel
_:search departure cambridge
_:search destination broxbourne
_:search leave_at 11:45
_:result amount many
_:system offered _:booking
_:booking category Train
_:result arrive_by 13:01
_:result departure Cambridge
_:result destination Broxbourne
_:result id TR2939
_:result leave_at 12:01
_:search area north
_:search has_parking yes
_:result area north
_:result count 11
_:search category hotel
_:search has_internet yes
_:result category guesthouses
_:result has_internet none
_:result has_parking none
_:result stars 4
_:result type Hotel
_:search day wednesday
_:search name ashley hotel
_:search people 8
_:system canthelp _:booking/37b02df1
_:booking/37b02df1 type Booking
_:booking day ?
_:booking stay ?
_:booking type Booking
_:search stay 3
_:search type Hotel
_:result ref ?
_:search departure cambridge
_:search destination broxbourne
_:search leave_at 11:45
_:result amount many
_:system offered _:booking
_:booking category Train
_:result arrive_by 13:01
_:result departure Cambridge
_:result destination Broxbourne
_:result id TR2939
_:result leave_at 12:01
_:search area north
_:search has_parking yes
_:result area north
_:result count 11
_:search category hotel
_:search has_internet yes
_:result category guesthouses
_:result has_internet none
_:result has_parking none
_:result stars 4
_:result type Hotel
_:search day wednesday
_:search name ashley hotel
_:search people 8
_:system canthelp _:booking/37b02df1
_:booking/37b02df1 type Booking
_:booking day ?
_:search stay 3
_:search type Hotel
_:result ref ?
_:system inquired _:user
_:booking name Ashley Hotel
_:booking people 8
_:booking ref V499X99C
_:booking stay 3
_:booking type Booking