inform((_:search,destination,'london liverpool street');(_:search,type,'Train'))
user
I need a train going to   london liverpool street .
request((_:search,departure,?);(_:search,type,'Train')) thank()
system
Ok .   And where will you be departing from ?
inform((_:search,day,'saturday');(_:search,departure,'cambridge');(_:search,type,'Train'))
user
I will be departing from Cambridge on Saturday .
request((_:search,leave_at,?);(_:search,type,'Train'))
system
What time would you like to leave ?
inform((_:search,arrive_by,'16:45');(_:search,type,'Train'))
user
I do n't have a departure time but I want to arrive by 16:45 .
inform((_:result,id,'TR2895');(_:result,leave_at,'05:59');(_:result,type,'Train'))
system
How about TR2895 ? It leaves at 05:59 .
inform((_:search,people,'3');(_:search,type,'Train'))
user
That sounds great .   Can you book 3 tickets for that train ?
inform((_:booking,category,'Train');(_:booking,ref,'H5MDQ0XR');(_:booking,type,'Booking'))
system
Your booking is complete . Your reference number is H5MDQ0XR .
inform((_:search,area,'cetre');(_:search,category,'concerthall');(_:search,type,'Attraction'))
user
looking for places to go in cetre part of town a type of concerthall and I need the adress
system
The Man on the Moon 2 Norfolk Street , cb12lf . Will there be anything else today ?
_:search destination london liverpool street
_:search type Train
_:search destination london liverpool street
_:search day saturday
_:search departure cambridge
_:search type Train
_:search destination london liverpool street
_:search day saturday
_:search departure cambridge
_:search leave_at ?
_:search arrive_by 16:45
_:search type Train
_:search destination london liverpool street
_:search day saturday
_:search departure cambridge
_:search leave_at ?
_:search arrive_by 16:45
_:result id TR2895
_:result leave_at 05:59
_:result type Train
_:search people 3
_:search type Train
_:search destination london liverpool street
_:search day saturday
_:search departure cambridge
_:search leave_at ?
_:search arrive_by 16:45
_:result id TR2895
_:result leave_at 05:59
_:result type Train
_:search people 3
_:booking category Train
_:booking ref H5MDQ0XR
_:booking type Booking
_:search area cetre
_:search category concerthall
_:search type Attraction