U: I'm looking for a guesthouse where I can stay in east Cambridge.

S: There are several guesthouses on the east side. I recommend the Allenbell. It's cheap, but it still gets 4 stars.

U: I was hoping for one that is in the moderate price range.

S: Okay I have the A and B guesthouse in the moderate price range. Would you like to book that?

U: Yes, actually. Can you reserve a room for me for Friday for 3 guests?

S: Booking was successful.
Reference number is : UN2JUAA4.

U: Thanks. Are these rooms known to be clean?
S: Yes the rooms are very cleans as they are assign someone to do so as their duty even if there is no people.