inform((_:search,area,'south');(_:search,pricerange,'expensive');(_:search,type,'Restaurant'))
user
I would like to find an expensive restaurant in the south part of town .
request((_:search,food,?);(_:search,type,'Restaurant'))
system
What type of cuisine would you prefer ?
inform((_:search,food,'dontcare');(_:search,type,'Restaurant'))
user
i do nt care .
inform((_:result,area,'south');(_:result,name,'The chiquito restaurant');(_:result,pricerange,'expensive');(_:result,type,'Restaurant'))
system
The chiquito restaurant bar is in the south part of town and is in the expensive price range . Would you like their location ?
user
Are there any others ?
inform((_:result,area,'south');(_:result,food,'italian');(_:result,name,'frankie and bennys');(_:result,pricerange,'expensive');(_:result,type,'Restaurant'))
system
Yes , there is frankie and bennys , italian restaurant in the expensive price range and in south . Do you want the address ?
request((_:result,phone,?);(_:result,postcode,?);(_:result,type,'Restaurant'))
user
I would like the phone number and postcode , please .
inform((_:result,name,'frankie and bennys');(_:result,phone,'01223 412430');(_:result,postcode,'7 D.Y');(_:result,postcode,'C.B 1');(_:result,type,'Restaurant'))
system
The phone number for frankie and bennys is   01223 412430 and postcode is C.B 1 , 7 D.Y
thank()
user
Nope , that 'll do it . Thank you very much !
system
Thank you for using our system . Good bye
_:search area south
_:search pricerange expensive
_:search type Restaurant
_:search area south
_:search pricerange expensive
_:search food dontcare
_:search type Restaurant
_:search area south
_:search pricerange expensive
_:search food dontcare
_:search type Restaurant
_:result area south
_:result name The chiquito restaurant
_:result pricerange expensive
_:result type Restaurant
_:search area south
_:search pricerange expensive
_:search food dontcare
_:search type Restaurant
_:result area south
_:result food italian
_:result name frankie and bennys
_:result pricerange expensive
_:result type Restaurant
_:result phone ?
_:result postcode ?
_:search area south
_:search pricerange expensive
_:search food dontcare
_:search type Restaurant
_:result area south
_:result food italian
_:result pricerange expensive
_:result name frankie and bennys
_:result phone 01223 412430
_:result postcode 7 D.Y
_:result postcode C.B 1
_:result type Restaurant