Good morning, I need help finding a restaurant that serves bistro in the moderate price range.
I couldn't find a restaurant with the attributes you are looking for. Would you like something else?
How about one with british food?
There are 5 restaurants serving british food. Do you have a preferred area?
I do not have a preferred area.  Which ones have a table available for 6 people at 12:30 on Tuesday?
Is there a price range you would prefer to stay within?
No I do not need to stay within a price.
I have Restaurant One Seven in the moderate price range. Would you like me to book a reservation?
Yes, please. 
The booking was unsuccessful, do you have any other preference? 
I just need a restaurant in the same area and has the same price range. 
Sure. I booked you a table in the oak bistro which is in the center part of the town. Your reservation number is CMJ6WM0Z.
Great, thanks for that. See you!
Sure, I'm here to help you. Bye!