U: I need a place to eat that is expensive.

S: There are many options for expensive dining.

U: Specifically, I would like an Indian restaurant.

S: There are a number of expensive Indian options.  Is there a specific part of town you were looking for?

U: Not really, as long as it is open on Monday and has room for 5 people.

S: It appears that the Curry Garden meets your needs! Would you like me to book that for you?

U: Does the Curry Garden serve Samosas?
S: Yes, the Curry Garden does serve Samosas. Is there anything else you'd like to know about them or would you like to make a reservation?