Hi, I am looking for a restaurant in the centre area where I can eat russian food.
Unfortunately, there aren't any russian restaurants in that location. Would you like another type of food, or perhaps a different location?
Then how about one that serves chinese food?
There are 5 such restaurants. I recommend the rice house. Would you like a reservation?
Yes could you make a booking for 8 people at 16:00 on thursday?
The rice house if booked full for that time. I could try the Charlie Chan, or the Golden House for you, if you wish.  
Sure that's fine try any one of those. I'll need the reference number too please.
I was able to book you a table at the Jinling Noodle Bar on Regent Street.  Your reference number is GJPTB7CD.  Is that all for today?
Yes that will be all.  Thanks for your help.  Bye.
Enjoy your meal at the jinling noodle bar. Have a great day.