inform((_:search,food,'swedish');(_:search,pricerange,'cheap');(_:search,type,'Restaurant'))
user
I want to find a cheap restaurant serving swedish food
request((_:search,food,?);(_:search,pricerange,?);(_:search,type,'Restaurant')) canthelp((_:search,type,'Restaurant')) inform((_:result,food,'Swedish');(_:result,pricerange,'cheap');(_:result,type,'Restaurant'))
system
I 'm sorry , I ca n't find any cheap Swedish restaurants . Would you like to look for a different style of food , or increase your price range ?
inform((_:search,food,'indian');(_:search,type,'Restaurant'))
user
How about indian food ?
select((_:result,area,'centre');(_:result,area,'north');(_:result,type,'Restaurant')) inform((_:result,count,'3');(_:result,food,'Indian');(_:result,name,'Royal spice');(_:result,pricerange,'cheap');(_:result,type,'Restaurant'))
system
There are three cheap Indian restaurants in the centre part of town , or Royal spice is a cheap Indian restaurant in the north . Do any of these interest you ?
inform((_:search,name,'royal spice');(_:search,type,'Restaurant')) request((_:result,address,?);(_:result,type,'Restaurant'))
user
Yes , what is the address for Royal Spice please ?
reqmore() inform((_:result,address,'Victoria Avenue Chesterton');(_:result,name,'Royal spice');(_:result,type,'Restaurant'))
system
Royal spice is located at Victoria Avenue Chesterton .   Do you need any other information ?
thank()
user
Thank you . Goodbye .
system
Thank you for calling us and please use our system again . Goodbye .
_:search food swedish
_:search pricerange cheap
_:search type Restaurant
_:search pricerange ?
_:system canthelp _:search/b0c77d26
_:search/b0c77d26 type Restaurant
_:result food Swedish
_:result pricerange cheap
_:result type Restaurant
_:search food indian
_:search type Restaurant
_:search pricerange ?
_:system canthelp _:search/b0c77d26
_:search/b0c77d26 type Restaurant
_:search food indian
_:result area centre
_:result area north
_:result count 3
_:result food Indian
_:result name Royal spice
_:result pricerange cheap
_:result type Restaurant
_:search name royal spice
_:search type Restaurant
_:result address ?
_:search pricerange ?
_:system canthelp _:search/b0c77d26
_:search/b0c77d26 type Restaurant
_:search food indian
_:result area centre
_:result area north
_:result count 3
_:result food Indian
_:result pricerange cheap
_:search name royal spice
_:search type Restaurant
_:system inquired _:user
_:result address Victoria Avenue Chesterton
_:result name Royal spice
_:result type Restaurant