U: What does Cambridge offer as far as expensive cantonese restaurants?

S: I'm so sorry but we don't have any expensive cantonese.  Would you like to try another type of food?

U: How about british food instead.

S: There are 6 British restaurants. Do you have a particular area of interest?

U: No, but I want the most expensive one.

S: I would suggest  Fitzbillies Restaurant. Would you like me to book a table now?

U: Do they serve large portions of food?
S: The reviews on the portions are mixed. Half of the customer were pleasantly surprised at the large portions while the others were not happy with their small portions. Would you like me to find another place with better ratings on portions?