U: I would like to find a cheap African restaurant in the area.

S: I was unable to find any cheap african places.

U: What cheap restaurants are in the centre?

S: We have fifteen cheap restaurants in the center, with cuisines ranging from asian oriental to mediterranean and modern european.

U: How about Spanish food. Do you have a restaurant serving that?

S: La Raza is a spanish restaurant in that price range, shall I book a table for you?

U: Is La Raza highly rated for serving large portion sizes?
S: All of the reviewers loved the large portion sizes at la raza. Is there any other information that you need?