U: I need a zero star hotel in Cambridge with wifi.

S: There is one hotel with your criteria. cityroomz in the centre. It is moderately priced. Would you like me to book it for you?

U: No, I actually need it in the north part of town.

S: I have no hotels that match what you want in the north area

U: I guess the Cityroomz in the centre would be fine then.  Does it include free wifi?

S: Yes, it includes wifi

U: Do the rooms have a good cleanliness rating?
S: Yes it has a good cleanliness rating. Only one recent guest indicated that their room needed to be cleaned.