inform((_:search,area,'north');(_:search,food,'australian');(_:search,type,'Restaurant'))
user
I would like a restaurant in the north part of town that serves australian food
canthelp((_:search,type,'Restaurant')) reqmore()
system
There are no restaurants matching your criteria . Would you like to search for something else ?
inform((_:search,food,'asian oriental');(_:search,type,'Restaurant'))
user
How about asian oriental food ?
inform((_:result,area,'north');(_:result,food,'asian oriental');(_:result,name,'Saigon City');(_:result,pricerange,'quite expensive');(_:result,type,'Restaurant'))
system
Saigon City serves asian oriental and they are located in the north , although they are quite expensive . Would you like the address ?
request((_:result,address,?);(_:result,phone,?);(_:result,type,'Restaurant'))
user
Yes , I would like their address and phone number .
inform((_:result,address,'169 High Street Chesterton Chesterton');(_:result,name,"Saigon City 's");(_:result,phone,'01223 356555');(_:result,type,'Restaurant'))
system
Saigon City 's address is 169 High Street Chesterton Chesterton   and its phone number is 01223 356555
thank()
user
Thank you goodbye .
system
thank you and good bye
_:search area north
_:search food australian
_:search type Restaurant
_:search area north
_:system canthelp _:search/652adea7
_:search/652adea7 type Restaurant
_:system inquired _:user
_:search food asian oriental
_:search type Restaurant
_:search area north
_:system canthelp _:search/652adea7
_:search/652adea7 type Restaurant
_:system inquired _:user
_:search food asian oriental
_:search type Restaurant
_:result area north
_:result food asian oriental
_:result name Saigon City
_:result pricerange quite expensive
_:result type Restaurant
_:result address ?
_:result phone ?
_:search area north
_:system canthelp _:search/652adea7
_:search/652adea7 type Restaurant
_:system inquired _:user
_:search food asian oriental
_:search type Restaurant
_:result area north
_:result food asian oriental
_:result pricerange quite expensive
_:result address 169 High Street Chesterton Chesterton
_:result name Saigon City 's
_:result phone 01223 356555
_:result type Restaurant