U: I'm looking for a place to stay when I visit Cambridge. I want to stay at a 4 star guesthouse.

S: We have 18 available guesthouses.  Which area would you prefer?

U: I'd like some place on the north end, please.

S: There are 8 4-star guesthouses in north. Do you have a price preference?

U: I do not. I would like to book the cheapest one for 2 people staying 4 nights starting on Thursday.

S: Great! You're booked at Worth House with reference number 3HCUPL7S. Would you like more information?

U: Yes, can you tell me whether they have good reputation for clean and spotless rooms?
S: Clean and spotless were words that previous guests used to describe their experience while staying at Worth House. Can I help you with anything else?