U: I need a place to eat in the centre of town.

S: There are a lot of restaurants to choose from in the centre, what type of food do you want to eat?

U: Can you please search for  indian food.

S: I have many choices in the city center. Are you looking for something expensive or cheap?

U: I want something expensive.

S: How about Curry Garden on Regent Street?

U: Is the staff trained well and friendly?
S: There are widely mixed views regarding the service quality available at the Curry Garden, from cold and slow to great.