Can you tell me about any expensive restaurants in the Centre?
We have 33 expensive restaurants in the centre, do you have a specific cuisine in mind?
Yes, I would prefer chinese please.
I have the tang chinese restaurant located at napier street city centre.  Would you like to make reservations?
Yes.  Make a reservation for 8 people on Monday at 11:30.
Okay I found you a Chinese restaurant and wish to make you a booking.
Please book the restaurant as requested. I would also like the reference number.
Reference number is : JCH9E5BI. do you need anything else?

No, that's it. Thanks so much. 
You're welcome! You have a great day.