U: I need an expensive restaurant

S: What kind of food are you interested in?

U: I would like Vietnamese food

S: No restaurants matching your queries have been found. Would you like to search for another food type?

U: Is there any restaurants severing North American food.

S: Gourmet Burger Kitchen is an expensive restaurant that serves North American food.

U: Do they have decently priced lager?
S: I'm not sure, two people mentioned that the drinks were affordable and one person said they were pricey. Nobody mentioned the lager.