inform((_:search,food,'persian');(_:search,type,'Restaurant'))
user
I am looking for a restaurant serving persian food .
request((_:search,area,?);(_:search,type,'Restaurant'))
system
Do you have a specific area in mind ?
inform((_:search,area,'dontcare');(_:search,type,'Restaurant'))
user
it does n't matter .
canthelp((_:search,type,'Restaurant')) inform((_:result,food,'persian');(_:result,type,'Restaurant'))
system
No restaurants serving persian food have been found .
inform((_:search,food,'european');(_:search,type,'Restaurant'))
user
can i have an european restaurant instead ?
reqmore() inform((_:result,area,'west');(_:result,food,'european');(_:result,name,'cambridge lodge restaurant');(_:result,type,'Restaurant'))
system
cambridge lodge restaurant is in the west part of town and it is serving european food . Is there anything else I can help you with ?
request((_:result,address,?);(_:result,phone,?);(_:result,type,'Restaurant'))
user
I need the address and phone number .
reqmore() inform((_:result,address,'Cambridge Lodge Hotel 139 Huntingdon Road City Centre');(_:result,name,'Cambridge Lodge Restaurant');(_:result,phone,'01223 355166');(_:result,type,'Restaurant'))
system
The address of Cambridge Lodge Restaurant is Cambridge Lodge Hotel 139 Huntingdon Road City Centre and the phone number is 01223 355166 . May I help you with anything else ?
thank()
user
No , that does it .   Thank you and goodbye !
system
Thank you for using our system . Good bye
_:search food persian
_:search type Restaurant
_:search food persian
_:search area dontcare
_:search type Restaurant
_:search area dontcare
_:system canthelp _:search/561cc121
_:search/561cc121 type Restaurant
_:result food persian
_:result type Restaurant
_:search food european
_:search type Restaurant
_:search area dontcare
_:system canthelp _:search/561cc121
_:search/561cc121 type Restaurant
_:search food european
_:search type Restaurant
_:system inquired _:user
_:result area west
_:result food european
_:result name cambridge lodge restaurant
_:result type Restaurant
_:result address ?
_:result phone ?
_:search area dontcare
_:system canthelp _:search/561cc121
_:search/561cc121 type Restaurant
_:search food european
_:search type Restaurant
_:result area west
_:result food european
_:system inquired _:user
_:result address Cambridge Lodge Hotel 139 Huntingdon Road City Centre
_:result name Cambridge Lodge Restaurant
_:result phone 01223 355166
_:result type Restaurant