Task-oriented dialogue about: restaurant

I need to find a restaurant in the west area and more on the expensive side.
There are 9 restaurants that meet that criteria. Is there a type of cuisine you would prefer?
I don't have a preference.
I have a listing for Cambridge lodge restaurant that serves British food,can I book you a table there?
That sounds good. I would like a reservation for 6 people at 19:45 on Sunday.
I'm sorry. That booking was unsuccessful. Would you like me to try another time or another restaurant?
Is there another restaurant available at that time in the same area and price range?
Yes, I can book you at Graffiti. The reference number is UYW8JK6T . May I help with anything else?
I think that is all, thank you, cheers.
Good day.