U: Help me find a chinese place to dine in the centre please.

S: I show 10 Chinese restaurants located in the centre. Do you have a price range in mind?

U: I would like to stay in the expensive price range.

S: There are 4 Chinese restaurant in the centre of town in the expensive price range. May I suggest HK Fusion?

U: Does HK Fusion serve delicious spring rolls?
S: HK Fusion gets some high marks from customers who ordered spring rolls. Is there anything else I can find out for you?