I'm looking for a gastropub.
Okay, there are four gastropubs in cambridge. Are you looking for a particular area or a certain price range?
Yes, something in the centre of town please?
I have 3 gastropubs in the center of town. Does price range matter to you?
No, price range does not matter. 
In that case, I recommend Backstreet Bistro at 2 Sturton Street City Centre. Would you like a table there?
I'm sorry, I do need something expensive. Is  Backstreet Bistro an expensive place?
Yes, they are an expensive restaurant. Would you like me to make a reservation for you?
Yes, I'd like  reservation for 8 people t 11:15 on Saturday.
Booking was successful. Can I get you anything else?
May I have the reference number?
Of course, the reference number is JP761RJS.
Thank you so much.
Have a great day!