inform((_:search,area,'centre');(_:search,type,'Attraction'))
user
I am looking for places to go in town centre .   What are some options ?
inform((_:result,address,'anglia ruskin enterprise , east road');(_:result,address,'trumpington street');(_:result,name,'fitzwilliam museum');(_:result,name,'mumford theatre');(_:result,type,'Attraction'))
system
I have the Mumford Theatre at anglia ruskin enterprise , east road , or the fitzwilliam museum at trumpington street .
request((_:result,entrance_fee,?);(_:result,type,'Attraction'))
user
What are the entrance fees for all those locations ?
system
The entrance fee is free for the museum is free , and the theater fee is unknown .
inform((_:search,day,'tuesday');(_:search,destination,'cambridge');(_:search,leave_at,'16:00');(_:search,type,'Train'))
user
Okay , thanks for that information .   I would like to book a train as well . I 'm leaving Tuesday after 16:00 from Cambridge .
request((_:search,destination,?);(_:search,type,'Train'))
system
Alright , where would you like to go ?
inform((_:search,departure,'stansted airport');(_:search,destination,'cambridge');(_:search,type,'Train'))
user
I 'd like to go from stansted airport to Cambridge .
inform((_:result,id,'TR8372');(_:result,leave_at,'16:24');(_:result,type,'Train')) offer((_:booking,category,'Train');(_:booking,type,'Booking'))
system
TR8372 leaves at 16:24 . Are you interested ?
inform((_:search,people,'8');(_:search,type,'Train')) request((_:result,ref,?);(_:result,type,'Train'))
user
Yes , I need to book that for 8 people .   Please send the reference number .
inform((_:booking,category,'Train');(_:booking,ref,'VHL6TYDF');(_:booking,ticket,'80.8 GBP');(_:booking,type,'Booking'))
system
Booking was successful , the total fee is 80.8 GBP payable at the station . 
 Reference number is : VHL6TYDF .
thank()
user
Thank you ! Goodbye .
system
You 're welcome goodbye .
_:search area centre
_:search type Attraction
_:search area centre
_:search type Attraction
_:result address anglia ruskin enterprise , east road
_:result address trumpington street
_:result name fitzwilliam museum
_:result name mumford theatre
_:result type Attraction
_:result entrance_fee ?
_:search area centre
_:result address anglia ruskin enterprise , east road
_:result address trumpington street
_:result name fitzwilliam museum
_:result name mumford theatre
_:result type Attraction
_:result entrance_fee ?
_:search day tuesday
_:search destination cambridge
_:search leave_at 16:00
_:search type Train
_:search area centre
_:result address anglia ruskin enterprise , east road
_:result address trumpington street
_:result name fitzwilliam museum
_:result name mumford theatre
_:result type Attraction
_:result entrance_fee ?
_:search day tuesday
_:search leave_at 16:00
_:search departure stansted airport
_:search destination cambridge
_:search type Train
_:search area centre
_:result address anglia ruskin enterprise , east road
_:result address trumpington street
_:result name fitzwilliam museum
_:result name mumford theatre
_:result entrance_fee ?
_:search day tuesday
_:search leave_at 16:00
_:search departure stansted airport
_:search destination cambridge
_:result id TR8372
_:result leave_at 16:24
_:result type Train
_:system offered _:booking
_:booking category Train
_:booking type Booking
_:search people 8
_:search type Train
_:result ref ?
_:search area centre
_:result address anglia ruskin enterprise , east road
_:result address trumpington street
_:result name fitzwilliam museum
_:result name mumford theatre
_:result entrance_fee ?
_:search day tuesday
_:search leave_at 16:00
_:search departure stansted airport
_:search destination cambridge
_:result id TR8372
_:result leave_at 16:24
_:result type Train
_:system offered _:booking
_:search people 8
_:search type Train
_:result ref ?
_:booking category Train
_:booking ref VHL6TYDF
_:booking ticket 80.8 GBP
_:booking type Booking