U: Can you help me find an expensive restaurant in the north that serves African?

S: I'm sorry I have no restaurants serving African food in the expensive category. Is there another type of restaurant you would like to look for?

U: I am looking for a cinema.

S: I have located two cinemas. One is in the north; the other in the south.  Would you like additional information?

U: Yes, can I have entrance fee and address for the one in the south?

S: Cineworld Cinema is at Cambridge Leisure Park, Clifton Way in the south, but I don't know its entrance fee. We never figured out a restaurant for you, should we keep looking?

U: Yes. I need a restaurant the is moderate priced with Italian food in the west.

S: Great I have one called Prezzo. would you like a booking there?

U: Yes, that sounds great. Make a reservation for 3 people at 20:00 on Friday and provide the reference number.

S: Your reservation has been booked. The table will be reserved for you for 15 minutes after 20:00. Your booking number is LQSPGQ3I. Anything else I can help with?

U: Yes, can you please check that Prezzo offers good portions of foods? Thank you.
S: The restaurant Prezzo offers portion sizes that yield differing opinions from its guests; from big to small.