U: I am looking for a restaurant in Cambridge that serves south indian food.

S: I am sorry there are no restaurants in the are that match that description.

U: What kind of moderately-priced restaurants are there in the center of town, then?

S: We've got 21 moderately-priced restaurants in the centre. There are Asian Oriental, British, Chinese, European, Gastropub, International, Italian, Lebanese, Modern European, Spanish, and Turkish options. Do any of those interest you?

U: Good. I would like to try Asian Oriental then.

S: The Yippee noodle bar meets your criteria. Would you like me to book that for you?

U: No thanks.  How about a moderately priced modern European restaurant?

S: Hotel Du Vin and Bistro serves European food and is moderately priced. Does this sound good to you?

U: Does their wine list include a nice Riesling that's not too expensive?
S: There is no mention of a resiling at this place. The drinks are a bit expensive. It does offer a full bar so plent of drinks.