U: I am looking for a restaurant with vegetarian food.

S: What area of town are you looking for?

U: Any area of town would be fine.

S: There are no restaurants serving vegetarian food.

U: How about european food?

S: Would you prefer European or modern European food?

U: European, please.

S: There are ten results. Do you have a price range preference?

U: No I do not

S: Cambridge Lodge Restaurant serves European food and is the expensive price range.

U: Do they have good schnitzel on their menu?
S: A customer review from a guest who ordered schnitzel found their food to be excellent. Would you like to book it?