I'm so hungry! Can you find me an expensive restaurant?
Well if your going to be in the centre then may I suggest kymmoy? They serve asian oriental
Actually, I'd prefer some good German food. Is there an expensive German restaurant in the city centre?
I don't have an expensive German restaurant in the centre. We could try a cheaper restaurant or in a different location if you like. 
How about one that serves mediterranean food in the same parameters?
Yes, there are two! La Mimosa and Shiraz. Which one do you prefer?
I'd like to try La Mimosa. Could I get a table for 8 at 15:30 on Friday? A reference number would be great. Thank you
Your table is reserved for Friday, reference number 6HD6GFXN. Can I help you with anything else today?
How much should I expect the cost per person to be at this place?
I am not sure the exact price per person. 
That's fine then.  Thank you for your help.
You're quite welcome, have a great day!