inform((_:search,area,'west');(_:search,pricerange,'cheap');(_:search,type,'Restaurant'))
user
I 'm looking for a cheap restaurant in the west area of town .
inform((_:result,area,'west');(_:result,name,'Cambridge lodge restaurant');(_:result,pricerange,'cheap');(_:result,type,'Restaurant'))
system
The Cambridge lodge restaurant   is in the cheap price range and in the west part of town .
request((_:result,phone,?);(_:result,type,'Restaurant'))
user
What its phone number ?
inform((_:result,phone,'can not find that information');(_:result,type,'Attraction'))
system
I can not find that information .
inform((_:search,area,'west');(_:search,pricerange,'cheap');(_:search,type,'Restaurant')) request((_:result,phone,?);(_:result,type,'Restaurant'))
user
Can you give me the phone number of a different , cheap restaurant in the west part of town ?
inform((_:result,area,'west');(_:result,food,'Vietnamese');(_:result,name,'Thanh Binh');(_:result,phone,'01223 362456');(_:result,pricerange,'cheap');(_:result,type,'Restaurant'))
system
Thanh Binh is a Vietnamese restaurant in the west of town and is in the cheap price range . The phone number is 01223 362456 .
thank()
user
Thank you !   Goodbye .
system
Have a good evening .
_:search area west
_:search pricerange cheap
_:search type Restaurant
_:search area west
_:search pricerange cheap
_:search type Restaurant
_:result area west
_:result name Cambridge lodge restaurant
_:result pricerange cheap
_:result type Restaurant
_:result phone ?
_:result area west
_:result name Cambridge lodge restaurant
_:result pricerange cheap
_:result phone can not find that information
_:result type Attraction
_:search area west
_:search pricerange cheap
_:search type Restaurant
_:result phone ?
_:result type Restaurant
_:search area west
_:search pricerange cheap
_:search type Restaurant
_:result area west
_:result food Vietnamese
_:result name Thanh Binh
_:result phone 01223 362456
_:result pricerange cheap
_:result type Restaurant