I would like to find a restaurant in the expensive price range that is located in the city center.
There are 33 expensive resturants in the city center.  We could narrow it down more by food type. What type of food would you like?
I do not care about that.
Bedouin serves African food, is in the center, and in the expensive price range. Do you want me to book this restaurant?
Yes, I'd like to book a table for seven at 19:15 on Tuesday.
Ok I have booked you at Bedouin on Tuesday at 19:15 for 7 people.
May I have the reference number please?
It is actually not open then, another day or place to dine?
How about a different restaurant in the area and price range?
I was able to book you at the Cambridge chop house. Reference number K1T50MHG.
Thank you, that's all I need today.
Okay. Enjoy your dinner.