U: I am looking for a moderately priced restaurant in the centre of Cambridge.

S: There are 21 restaurants that meet your needs. Would you like to narrow your search by type of food?

U: Yes, I would like to find something with south african food.

S: There are no restaurants in the centre of Cambridge that serves South African food. Would you like to try a different type or a different price range?

U: What about one in the centre of cambridge that serves spanish food?

S: There is La Tasca located at 14-16 bridge street. Would you like me to book a table for you?

U: Do they serve decently priced Gazpacho there?
S: La Tasca has decent reviews for their foods, but I have no idea what is on their menu, sorry. Do you want a table there?