U: I need to find a vietnamese restaurant in the moderate price range.

S: I'm sorry, we don't have anywhere that matches those criteria.  Is there something else I can find for you?

U: Can you try chinese?

S: I have four choices for Chinese restaurants. Three are in the center of town and one is in the north. Any preference?

U: I'm a pathological liar. I don't want Chinese. I actually want British food.

S: All righty, then. We have five moderately priced British restaurants. I'm almost afraid to ask, but does location matter?

U: I'd like it to be in the centre please.

S: There are 4 options for british food in the centre. restaurant one seven, the oak bistro, the copper kettle and cotto. Do any of those sound good to you?

U: Will I get a big helping of food?
S: The portions at Restaurant One Seven and the Copper Kettle are lacking while those at the Oak Bistro and Cotto are generous.