inform((_:search,departure,'london liverpool street');(_:search,destination,'cambridge');(_:search,type,'Train'))
user
Hi there , I am looking for a train going to Cambridge , and departing from London liverpool street . Can you book me one ?
thank() request((_:booking,day,?);(_:booking,type,'Booking');(_:search,day,?);(_:search,type,'Train'))
system
Absolutely .   Can you please tell me what day you would like the booking to be made for ?
inform((_:search,day,'saturday');(_:search,leave_at,'17:45');(_:search,type,'Train'))
user
I 'll be traveling on Saturday , please . Oh and I do n't want to leave too early , let 's say something after 17:45 .
inform((_:result,arrive_by,'21:07');(_:result,departure,'London Liverpool Street');(_:result,destination,'Cambridge');(_:result,leave_at,'19:39');(_:result,type,'Train')) offer((_:booking,category,'Train');(_:booking,type,'Booking'))
system
The first train after 17:45 from London Liverpool Street to Cambridge leaves at 19:39 and arrives at 21:07 . Would that be to your liking ?
request((_:result,duration,?);(_:result,type,'Train'))
user
That would work , could you tell me the travel time for that as well ?
inform((_:result,duration,'88 minutes');(_:result,type,'Train')) offer((_:booking,category,'Train');(_:booking,type,'Booking'))
system
Absolutely . The travel time is 88 minutes for that route . Would you like me to book a ticket for you ?
inform((_:search,category,'college');(_:search,type,'Attraction'))
user
No , I do n't need it booked right now . I would really like to find a college to visit in town .
inform((_:result,amount,'many');(_:result,area,'west');(_:result,category,'colleges');(_:result,name,'clare hall');(_:result,type,'Attraction')) reqmore()
system
I have many colleges but I could recommend clare hall . It is on the west side . Would you like more information on one ?
request((_:result,entrance_fee,?);(_:result,type,'Attraction'))
user
Yes .   Could you tell me what the entrance fee is ?
reqmore() inform((_:result,entrance_fee,'2.50 pounds');(_:result,type,'Attraction'))
system
The entrance fee is 2.50 pounds .   Is there anything else I can help you with ?
inform((_:search,type,'Train'))
user
Thank you for that information , you 've been very helpful . I will call back when I 'm ready to book the train .   Goodbye .
system
Thank you for using our system today !
_:search departure london liverpool street
_:search destination cambridge
_:search type Train
_:search departure london liverpool street
_:search destination cambridge
_:booking day ?
_:booking type Booking
_:search day saturday
_:search leave_at 17:45
_:search type Train
_:search departure london liverpool street
_:search destination cambridge
_:booking day ?
_:booking type Booking
_:search day saturday
_:search leave_at 17:45
_:search type Train
_:result arrive_by 21:07
_:result departure London Liverpool Street
_:result destination Cambridge
_:result leave_at 19:39
_:result type Train
_:system offered _:booking
_:booking category Train
_:result duration ?
_:search departure london liverpool street
_:search destination cambridge
_:booking day ?
_:booking type Booking
_:search day saturday
_:search leave_at 17:45
_:result arrive_by 21:07
_:result departure London Liverpool Street
_:result destination Cambridge
_:result leave_at 19:39
_:system offered _:booking
_:booking category Train
_:result duration 88 minutes
_:result type Train
_:search category college
_:search type Attraction
_:search departure london liverpool street
_:search destination cambridge
_:booking day ?
_:booking type Booking
_:search day saturday
_:search leave_at 17:45
_:result arrive_by 21:07
_:result departure London Liverpool Street
_:result destination Cambridge
_:result leave_at 19:39
_:system offered _:booking
_:booking category Train
_:result duration 88 minutes
_:search category college
_:search type Attraction
_:result amount many
_:result area west
_:result category colleges
_:result name clare hall
_:result type Attraction
_:system inquired _:user
_:result entrance_fee ?
_:search departure london liverpool street
_:search destination cambridge
_:booking day ?
_:booking type Booking
_:search day saturday
_:search leave_at 17:45
_:result arrive_by 21:07
_:result departure London Liverpool Street
_:result destination Cambridge
_:result leave_at 19:39
_:system offered _:booking
_:booking category Train
_:result duration 88 minutes
_:search category college
_:result amount many
_:result area west
_:result category colleges
_:result name clare hall
_:system inquired _:user
_:result entrance_fee 2.50 pounds
_:result type Attraction
_:search type Train