inform((_:search,area,'south');(_:search,type,'Restaurant'))
user
What is good in the south part of town
request((_:search,food,?);(_:search,type,'Restaurant'))
system
What type of food are you interested in ?
inform((_:search,food,'dontcare');(_:search,type,'Restaurant'))
user
I do n't care what type of food it is .
request((_:search,pricerange,?);(_:search,type,'Restaurant')) inform((_:result,amount,'nine');(_:result,area,'south');(_:result,type,'Restaurant'))
system
There are nine restaurants in the south area . Is there a price range you would like in particular ?
user
Yes , under $ 25.00 per entree .
select((_:result,pricerange,'cheap');(_:result,pricerange,'expensive');(_:result,pricerange,'moderate');(_:result,type,'Restaurant'))
system
Would you like the cheap , moderate , or expensive price range ?
inform((_:search,pricerange,'cheap');(_:search,type,'Restaurant'))
user
cheap , please
system
There are two available in the south : Nandos , which serves Portuguese , and The Lucky Star , which serves Chinese . Do you have a preference ?
_:search area south
_:search type Restaurant
_:search area south
_:search food dontcare
_:search type Restaurant
_:search area south
_:search food dontcare
_:search pricerange ?
_:search type Restaurant
_:result amount nine
_:result area south
_:result type Restaurant
_:search area south
_:search food dontcare
_:result amount nine
_:result area south
_:result pricerange cheap
_:result pricerange expensive
_:result pricerange moderate
_:result type Restaurant
_:search pricerange cheap
_:search type Restaurant