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: Yes, thank you. Will you please make a reservation at the restaurant for 3 people on Saturday at 15:15 and provide me with the reference number?

S: Sure thing! Your table is booked, and your reference number is SQ8N4IJX. Is there anything else I can assist you with today?

U: Yes please, could you find a hotel that offers free wifi in the same part of town as the restaurant?

S: There are 5 options that fit your criteria.  Do you have a price range in mind or any other specifications?

U: No. I just need it to be for three people, for three nights.

S: I am showing a total of five results that match your criteria.  May I suggest the four star Alexander Bed and Breakfast, located at 56 Saint Barnabas Road?

U: Actually, I need it to be a hotel, not a bed and breakfast.

S: What about the Gonville Hotel? It is an expensive hotel in the centre of town.

U: Are the rooms cleaned thoroughly?
S: The Gonville Hotel has had a lot of issues with cleanliness. I found three guests that complained about their rooms not being clean.