inform((_:search,day,'monday');(_:search,destination,'cambridge');(_:search,type,'Train'))
user
I would like to take a train to Cambridge on Monday .
inform((_:result,amount,'lots');(_:result,type,'Train')) request((_:search,departure,?);(_:search,type,'Train'))
system
There are lots of trains to choose from !   Where are you departing from ?
inform((_:search,departure,'london liverpool');(_:search,destination,'cambridge');(_:search,type,'Train'))
user
I am departing from London Liverpool heading to Cambridge .
request((_:search,leave_at,?);(_:search,type,'Train'))
system
What time will you be traveling ?
inform((_:search,arrive_by,'15:30');(_:search,type,'Train'))
user
I need to arrive by 15:30
inform((_:result,arrive_by,'15:07');(_:result,type,'Train')) offer((_:booking,category,'Train');(_:booking,type,'Booking'))
system
I have a train that arrives at 15:07 . Would you like a booking ?
inform((_:search,people,'2');(_:search,type,'Train')) request((_:result,ref,?);(_:result,type,'Train'))
user
Yes please . Book it for 2 tickets . Also include the reference number .
reqmore() inform((_:booking,category,'Train');(_:booking,ref,'WRSETQCA');(_:booking,ticket,'33.2 GBP');(_:booking,type,'Booking'))
system
Booking was successful , the total fee is 33.2 GBP payable at the station . 
 Reference number is : WRSETQCA . Can I help you with anything else today ?
inform((_:search,category,'architecture');(_:search,type,'Attraction'))
user
Yes , can you tell me what type of architecture places are in cambridge ?
inform((_:result,area,'centre');(_:result,category,'architecture');(_:result,count,'5');(_:result,entrance_fee,'2 pounds');(_:result,entrance_fee,'free');(_:result,type,'Attraction'))
system
I have five architecture attractions in Cambridge .   All in the centre .   One costs 2 pounds and the others are free .
request((_:result,phone,?);(_:result,type,'Attraction'))
user
Thank you ! Can you please give me the phone number of the free one ?
inform((_:result,name,'All saints church');(_:result,phone,'01223452587');(_:result,type,'Attraction'))
system
All saints church can be reached at 01223452587
thank()
user
Thank you so much for all your help . You have a great day now .
system
You too , and thank you for contacting the Cambridge TownInfo centre !
_:search day monday
_:search destination cambridge
_:search type Train
_:search day monday
_:result amount lots
_:result type Train
_:search departure london liverpool
_:search destination cambridge
_:search type Train
_:search day monday
_:result amount lots
_:result type Train
_:search departure london liverpool
_:search destination cambridge
_:search leave_at ?
_:search arrive_by 15:30
_:search type Train
_:search day monday
_:result amount lots
_:search departure london liverpool
_:search destination cambridge
_:search leave_at ?
_:search arrive_by 15:30
_:result arrive_by 15:07
_:result type Train
_:system offered _:booking
_:booking category Train
_:booking type Booking
_:search people 2
_:search type Train
_:result ref ?
_:search day monday
_:result amount lots
_:search departure london liverpool
_:search destination cambridge
_:search leave_at ?
_:search arrive_by 15:30
_:result arrive_by 15:07
_:result type Train
_:system offered _:booking
_:search people 2
_:result ref ?
_:system inquired _:user
_:booking category Train
_:booking ref WRSETQCA
_:booking ticket 33.2 GBP
_:booking type Booking
_:search category architecture
_:search type Attraction
_:search day monday
_:result amount lots
_:search departure london liverpool
_:search destination cambridge
_:search leave_at ?
_:search arrive_by 15:30
_:result arrive_by 15:07
_:system offered _:booking
_:search people 2
_:result ref ?
_:system inquired _:user
_:booking category Train
_:booking ref WRSETQCA
_:booking ticket 33.2 GBP
_:booking type Booking
_:search category architecture
_:search type Attraction
_:result area centre
_:result category architecture
_:result count 5
_:result entrance_fee 2 pounds
_:result entrance_fee free
_:result type Attraction
_:result phone ?
_:search day monday
_:result amount lots
_:search departure london liverpool
_:search destination cambridge
_:search leave_at ?
_:search arrive_by 15:30
_:result arrive_by 15:07
_:system offered _:booking
_:search people 2
_:result ref ?
_:system inquired _:user
_:booking category Train
_:booking ref WRSETQCA
_:booking ticket 33.2 GBP
_:booking type Booking
_:search category architecture
_:search type Attraction
_:result area centre
_:result category architecture
_:result count 5
_:result entrance_fee 2 pounds
_:result entrance_fee free
_:result name All saints church
_:result phone 01223452587
_:result type Attraction