U: I need a place to dine on expensive crossover food.

S: There are no places a any price range that serve this food type, shall I search for something else for you?

U: are you sure? maybe try the centre?

S: I am sorry there are none in the centre. Would you like to try a different type of restaurant?

U: Sure, how about Chinese?

S: There is no Chinese either.

U: I really want to eat Chinese in the centre area of town.  Are you 100% positive that isn't possible?  I'll be heartbroken.

S: Actually, there is chinese. I recommend Ugly Duckling. Do you want a reservation?

U: Not yet, could you first confirm whether Ugly Ducking has great service?
S: Yes, guests at the Ugly Duckling enjoy the service from the attentive staff. Do you want a reservation?