U: i am looking for a restaurant that serves african food and is moderately priced

S: I'm sorry, but I'm not finding any moderately-priced African restaurants. Would you like to try a different cuisine?

U: Sure, can we try gastropub food?

S: The Cow Pizza Kitchen and bar is in the centre. Would you like their information?

U: Do they have high-quality leeks vinaigrette?
S: The Cow Pizza Kitchen and Bar does not get particularly high marks on their Leeks Vinaigrette. Would you like me to find another place with higher ratings?