hello()
system
hello , welcome to the parlance dialogue system ? you can ask for restaurant -s by area , price range or food type . how may i help you ?
inform((_:search,food,'brazilian');(_:search,pricerange,'moderate');(_:search,type,'Restaurant'))
user
i'm looking for a moderately price restaurant that serves brazilian food centre range
canthelp((_:result,food,'brazilian');(_:result,pricerange,'moderate');(_:result,type,'Restaurant'))
system
i am sorry but there is no place , serving brazilian food and in the moderate price range .
user
_:system greeted _:user
_:search food brazilian
_:search pricerange moderate
_:search type Restaurant
_:system greeted _:user
_:search food brazilian
_:search pricerange moderate
_:search type Restaurant
_:system canthelp _:result/4398ab35
_:result/4398ab35 food brazilian
_:result/4398ab35 pricerange moderate
_:result/4398ab35 type Restaurant