U: I'd be really happy if you could help me locate a place to stay in Cambridge tonight.

S: Absolutely, are you looking for anything specific?

U: I want an expensive guesthouse with free wifi

S: Which part of town are you looking to stay in?

U: I dont have any preference when it comes to where it is. As long as it is 4 stars

S: I'm sorry, there aren't any guesthouses that fit your requirements.

U: Then how about one in the cheap price range?

S: Cheap we can do! I recommend the Autumn House in the east. Would you like to book a room there?

U: As long as the rooms are kept clean. Can you check that?
S: According to a review I found, the Autumn House has clean rooms. Is there any other information you'd like me to find?