U: I am looking for a place to eat that's expensive and serves Belgian food.

S: I'm sorry, we don't have any Belgian restaurants. Would you like to try a different type?

U: How about somewhere expensive in the centre?

S: no such restraunts too

U: How about a gastropub restaurant?

S: I have two, the backstreet bistro and the slug and lettuce. Do you have a preference between the two?

U: Which offers large portions?
S: It states that the Backstreet Bistro is more generous with meal portions then the Slug and Lettuce. The Slug and Lettuce have smaller portions for meals.