inform((_:search,food,'swedish');(_:search,pricerange,'expensive');(_:search,type,'Restaurant'))
user
I am looking to find a restaurant that serves swedish food and expensive .
request((_:search,food,?);(_:search,type,'Restaurant')) canthelp((_:search,type,'Restaurant'))
system
I am sorry there are no restaurants that serve Swedish food in the expensive range .   Would you like to try another type of cuisine ?
inform((_:search,food,'indian');(_:search,food,'italian');(_:search,type,'Restaurant'))
user
How about Indian or Italian then ?
system
stazione restaurant and coffee bar is a nice place . Do you want the address ?
_:search food swedish
_:search pricerange expensive
_:search type Restaurant
_:search pricerange expensive
_:system canthelp _:search/ac55cef9
_:search/ac55cef9 type Restaurant
_:search food indian
_:search food italian
_:search type Restaurant