inform((_:search,area,'east');(_:search,pricerange,'cheap');(_:search,type,'Restaurant'))
user
Hello . I 'm looking for a cheap restaurant in the east part of town .
inform((_:result,area,'east');(_:result,name,'The missing sock');(_:result,pricerange,'cheap');(_:result,type,'Restaurant'))
system
The missing sock is a cheap restaurant in the east part of town .   Would you like their location ?
request((_:result,address,?);(_:result,food,?);(_:result,phone,?);(_:result,type,'Restaurant'))
user
I want to know their address , phone number , and type of food , please
inform((_:result,address,'Finders Corner Newmarket Road');(_:result,food,'International');(_:result,name,'Missing Sock');(_:result,phone,'01223 812660');(_:result,type,'Restaurant'))
system
The Missing Sock serves International food and is located at Finders Corner Newmarket Road .   The phone number is 01223 812660 .
thank()
user
Thank you , that is all I needed to know .   Have a good night .
system
Thank you for using our system . Good night
_:search area east
_:search pricerange cheap
_:search type Restaurant
_:search area east
_:search pricerange cheap
_:search type Restaurant
_:result area east
_:result name The missing sock
_:result pricerange cheap
_:result type Restaurant
_:result address ?
_:result food ?
_:result phone ?
_:search area east
_:search pricerange cheap
_:search type Restaurant
_:result area east
_:result pricerange cheap
_:result address Finders Corner Newmarket Road
_:result food International
_:result name Missing Sock
_:result phone 01223 812660
_:result type Restaurant