inform((_:search,area,'east');(_:search,pricerange,'expensive');(_:search,type,'Restaurant')) request((_:result,address,?);(_:result,type,'Restaurant'))
user
I need the address of an expensive restaurant in the east part of town .
select((_:result,food,'British');(_:result,food,'Chinese');(_:result,food,'Indian');(_:result,food,'gastropub');(_:result,type,'Restaurant'))
system
Would you prefer British , Indian , or Chinese food , or a gastropub ?
inform((_:search,area,"do n't have a preference");(_:search,type,'Restaurant'))
user
I do n't have a preference .
inform((_:result,area,'east');(_:result,food,'british');(_:result,name,'The grafton hotel');(_:result,pricerange,'expensive');(_:result,type,'Restaurant'))
system
The grafton hotel restaurant serves british food , is in the east part of town and is in the expensive price range .   Would you like their location ?
request((_:result,address,?);(_:result,type,'Restaurant'))
user
Yes , please give me their address .
inform((_:result,address,'Grafton Hotel 619 Newmarket Road Fen Ditton');(_:result,type,'Restaurant'))
system
Their address is Grafton Hotel 619 Newmarket Road Fen Ditton
thank()
user
thank you , goodbye .
system
You 're welcome . Goodbye !
_:search area east
_:search pricerange expensive
_:search type Restaurant
_:result address ?
_:result type Restaurant
_:search pricerange expensive
_:result address ?
_:result food British
_:result food Chinese
_:result food Indian
_:result food gastropub
_:result type Restaurant
_:search area do n't have a preference
_:search type Restaurant
_:search pricerange expensive
_:result address ?
_:search area do n't have a preference
_:search type Restaurant
_:result area east
_:result food british
_:result name The grafton hotel
_:result pricerange expensive
_:result type Restaurant
_:search pricerange expensive
_:search area do n't have a preference
_:search type Restaurant
_:result area east
_:result food british
_:result name The grafton hotel
_:result pricerange expensive
_:result address Grafton Hotel 619 Newmarket Road Fen Ditton
_:result type Restaurant