U: I am looking for an expensive restaurant that serves russian food.

S: there is no expensive restaurant that serves russian food can I help you with anything else

U: Yes do you have british type food?

S: Yes, there are 6 options.  Does the part of town matter?

U: I don't care.

S: I could recommend Graffiti in the west.Would you like more information?

U: Do they serve large portions?
S: Most people seem to feel the portions are large, and refer to them as big and generous. But there are past guests who have said they left a bit hungry because the portions are small.