inform((_:search,day,'sunday');(_:search,departure,'cambridge');(_:search,type,'Train'))
user
Are there any trains leaving out of Cambridge on Sunday ?
request((_:search,destination,?);(_:search,type,'Train'))
system
Yes . Where would you be going to ?
inform((_:search,arrive_by,'18:45');(_:search,destination,'stevenage');(_:search,type,'Train'))
user
Stevenage . I need to arrive by 18:45
inform((_:result,arrive_by,'18:10');(_:result,id,'TR7729');(_:result,type,'Train')) offer((_:booking,category,'Train');(_:booking,type,'Booking'))
system
TR7729 will arrive at 18:10 .   Would you like to book ?
inform((_:search,people,'three');(_:search,type,'Train'))
user
Yes please , I need tickets for three please .
reqmore() inform((_:booking,category,'Train');(_:booking,ref,'4R9DOBKH');(_:booking,ticket,'30.72 GBP');(_:booking,type,'Booking'))
system
Your booking was successful . The total fee is 30.72 GBP payable at the station . Your reference number is 4R9DOBKH . Can I help you with anything else ?
inform((_:search,name,'whipple museum of the history of science');(_:search,type,'Attraction'))
user
Yes I need information on whipple museum of the history of science .
reqmore() inform((_:result,area,'centre');(_:result,entrance_fee,'free');(_:result,name,'The whipple museum of the history of science');(_:result,phone,'01223330906');(_:result,type,'Attraction'))
system
The whipple museum of the history of science is in the centre . Admission is free , and the phone number is 01223330906 . Can I provide you with any other information ?
request((_:result,address,?);(_:result,type,'Attraction'))
user
Can you tell me the address as well ?
system
The address is Free School Lane and phone is 01223330906
_:search day sunday
_:search departure cambridge
_:search type Train
_:search day sunday
_:search departure cambridge
_:search arrive_by 18:45
_:search destination stevenage
_:search type Train
_:search day sunday
_:search departure cambridge
_:search arrive_by 18:45
_:search destination stevenage
_:result arrive_by 18:10
_:result id TR7729
_:result type Train
_:system offered _:booking
_:booking category Train
_:booking type Booking
_:search people three
_:search type Train
_:search day sunday
_:search departure cambridge
_:search arrive_by 18:45
_:search destination stevenage
_:result arrive_by 18:10
_:result id TR7729
_:result type Train
_:system offered _:booking
_:search people three
_:system inquired _:user
_:booking category Train
_:booking ref 4R9DOBKH
_:booking ticket 30.72 GBP
_:booking type Booking
_:search name whipple museum of the history of science
_:search type Attraction
_:search day sunday
_:search departure cambridge
_:search arrive_by 18:45
_:search destination stevenage
_:result arrive_by 18:10
_:result id TR7729
_:system offered _:booking
_:search people three
_:booking category Train
_:booking ref 4R9DOBKH
_:booking ticket 30.72 GBP
_:booking type Booking
_:search name whipple museum of the history of science
_:search type Attraction
_:system inquired _:user
_:result area centre
_:result entrance_fee free
_:result name The whipple museum of the history of science
_:result phone 01223330906
_:result type Attraction
_:result address ?