U: I'm looking for a cuban restaurant.

S: I'm afraid I don't have any matches. Do you have any other food preferences?

U: I need something expensive in Centre and it really needs to serve Cuban food.

S: Again, unfortunately, we don't have any Cuban restaurants listed. Is there another type of food you would like to try?

U: Is there a chinese restaurant in the same price range?

S: I have several places. Would you like me to book it?

U: No, just pick your favorite and give me the address and postcode please.

S: There is no listings for Cuban food ,would you want something else

U: I was hoping for Cuban, but since there aren't any, do you have any expensive Chinese restaurants in the centre of town?

S: May I recommend Ugly Duckling? They're an expensive Chinese restaurant in the centre and they are quite popular.

U: Does Ugly Duckling serve high quality Hot Pot at a good value?
S: So it looks like Ugly Duckling is really affordable and cheap, but their food is mediocre at best. Anything else you would like to know?