Hello, I am looking for an expensive restaurant that serves cantonese food. 
Sorry, there are no expensive restaurants serving cantonese food. Would you like to look for something else?
Yes.  An expensive thai restaurant would be good. 
Bangkok city serves Thai food and is in the expensive price range.
Great, can you please give me its address and  phone number? 
Bangkok City is at 24 Green street city and phone number is 01223 354382.
What is the postcode?
The postcode is C.B. 1 7 D.Y
Thank you good bye. 
Thank you, have a great day and enjoy your food.