inform((_:search,type,'Restaurant'))
user
Sure , I want some help finding a restaurant in Cambridge , please .
request((_:search,name,?);(_:search,type,'Restaurant'))
system
I can help you with that . What 's the name of the restaurant you 're looking for ?
inform((_:search,food,'indian');(_:search,type,'Restaurant'))
user
I do n't have a specific restaurant in mind . I 'm looking for an Indian restaurant .
request((_:search,area,?);(_:search,pricerange,?);(_:search,type,'Restaurant')) inform((_:result,amount,'several');(_:result,food,'Indian');(_:result,type,'Restaurant'))
system
I have several Indian restaurants available .   What price range and part of town would you prefer .
inform((_:search,area,'centre');(_:search,pricerange,'expensive');(_:search,type,'Restaurant'))
user
I want an expensive one in the centre .
system
there is one called Curry garden , it is in 106 Regent Street City Center .
_:search type Restaurant
_:search name ?
_:search food indian
_:search type Restaurant
_:search name ?
_:search food indian
_:result amount several
_:result food Indian
_:result type Restaurant
_:search area centre
_:search pricerange expensive
_:search type Restaurant