U: I'm looking for a hotel to stay at. I want it to be at least 2 stars and in the center of town.

S: I have a 3 star hotel and a 4 star hotel both in the centre. Would you like to book one of them?

U: Do you have anything that is 2 star rated in the centre?

S: we got none. can i help you with anything else?

U: That is all I need.

S: I am not finding a 2 star in the centre. Are you sure there is not another type of hotel you would like?

U: I do need a place to stay, so are there any 4 star hotels available?

S: I have 2 options - one is cheap and one is expensive. Which price range would you prefer?

U: cheap will work. can you book it for Wednesday? 1 person, 2 nights. I'll need the reference number too.

S: I was able to book a room at Alexander bed and breakfast, your reference number is VWF48IZM. Is there anything else I can help with?

U: Does the Alexander Bed and Breakfast have rooms that are nice and clean?
S: Most of the guests at Alexander Bed and Breakfast say that the rooms are clean while one person wasn't satisfied with the cleanliness.