I am looking for an expensive place to eat in the centre of town.
I have 33 restaurants that meet your requests.  Can you tell me what kind of food you are looking for?
The type of food doesn't matter. I just need a table for 3 for Friday night at 19:00.
Would you like me to try and make a reservation for the Cambridge Chop House?
Yes and lets book for next weekend,instead,thank you.
There is no availability at that time. Would you like to try another time or restaurant? 
Can you try to find another restaurant in the same area and pricerange? 
How about Fitzbillies restaurant? It's also an expensive British restaurant in the centre of the city
Yes, try that please. 
Alright, I have your table booked at Fitzbillies restaurant. The table will be reserved for 15 minutes. Your reference number is: BCVPHB3U. Anything else today?
No thanks, that is everything
No problem.  Enjoy your meal on Friday.  Good bye.