U: i am looking for a place to stay. The hotel should be in the moderate price range and should include free wifi.

S: I've found three to choose from.  What area would you like?  I have 2 in the north and 1 in the centre.  Do you know?

U: I would like a 3-star place, please.

S: Sorry, None of these places are 3 stars. Would you like to try something different?

U: What types of hotels are available in Cambridge that have a 3 star rating and are moderately priced?

S: Unfortunately, there are no hotels that fit that criteria, but there are 3 guesthouses with all the other specifications. Are you interested in those?

U: yes lets book one of those for 6 people and 4 nights starting from sunday

S: Okay. We have you booked at the Bridge Guest House. Your reference number is 2V8LWI7J. Can I help with anything else?

U: Are the rooms dirty there?
S: The Bridge Guest House has good reviews about their cleanliness. I can't find any negative comments about it.