Hi, I'm looking for an expensive restaurant that serves kosher food.
In which area would you like to find a Kosher restaurant in the expensive price range?
I do not care about the location. 
There are no Kosher restaurant in the expensive price range. Is there another food type or price range that you would like?
How about Korean food in the expensive price range?
There is a Korean restaurant in the expensive price range in the centre area of town. Would you like their information?
Yes, I would like their address please. 
The address of Little Seoul Korean restaurant is 108 Regent Street City Centre, postcode C.B 2, 1 D.P
Thank you.  That is all of the info that I needed.  Good bye.
You're welcome.  Good bye.