U: I am looking for an expensive restaurant that serves Persian food.

S: There are no Persian restaurants listed. Is there something else I can search for?

U: How about a restaurant that serves European food?

S: There are 4 restaurants that meet those specification. Do you have a preference of the area of town it is located at?

U: The area doesn't matter.

S: Okay, I suggest the Cambridge Lodge Restaurant. They serve great European food and are located in the west part of town. Would you like their phone number?

U: How is the view there?
S: They have a breathtaking view of a forest according to customers. Would you like to make a reservation for a table?