U: I am looking at a place to eat that serves venetian food in the centre.

S: Unfortunately, I don't see any restaurants that serve Venetian in the centre of town. Would you like to try a different area or type of cuisine?

U: Do you have any Chinese restaurants?

S: Yes there are 10 in the centre of town. Any price preference?

U: I was hoping for an expensive restaurant.

S: There are 4 expensive restaurants that are located in the town centre.  The Ugly Duckling, Tang Chinese, HK Fusion, and Sesame Restaurant and bar, would you like information on one?

U: Do any of them have good, cheap chow mein.
S: Three of the restaurants get positive comments on their prices while Tang Chinese is not mentioned at all. Chow Mein is not mentioned, specifically. Would you like me to see what I can find out about it?