U: Hi I am looking for a restaurant in the centre of town serving north indian food.

S: We don't have any specific restaurants in that category. Let's try something else?

U: That's too bad.  How about Chinese?

S: Okay sure what do you have?

U: Okay when you find something I would like to make a reservation for 2 people on a Sunday at 13:30.

S: Do you have a price range in mind?

U: I don't mind about the price range.

S: Okay, how about lan hong house? It is a chinese restsurant in the centre area and is in the moderate price range. Will that work for you?

U: Do you know whether or not it's a place with delivery service?

S: Ian hong house does do delivery. Would you like for me to go ahead with your booking?

U: That's fine.  Can you try booking it?

S: I'm sorry, but I wasn't able to book the restaurant for that date and time.  Would you like to try a different time?

U: How about 12:30?

S: You are booked for 12:30 on Sunday for 2 people. Your reference number is F1NTKWZO. Is there something else I can help you with?

U: Yes, does the restaurant serve alcohol?
S: Let me check that for you. Lang Hong House does serve alcohol. Would you like to know more about the drink options offered there?