U: I'm looking for a place to stay on my trip to Cambridge. It needs to have free wifi but doesn't need to have free parking.

S: I have 3 places that match your request. Is there a particular area you are looking to stay in?  Would you prefer a hotel or guesthouse?

U: I dont mind either but I am looking for something cheap and located in the south part of town.

S: Rosa's Bed and Breakfast is the guesthouse for you. Cheap, but 4 stars, with free internet and parking.

U: I don't really need parking, is Rosa's in the south of town?

S: Yes it is in the south part of town and has a 4 star rating.  Can I book a room for you?

U: Yes, please book this for 4 people for 3 nights starting on Thursday.

S: I am unable to book the room under these parameters for the requested time. Is a shorter stay a possibility?

U: What about for 2 nights? I will also need the reference number when it is booked.

S: Rosa's now has a room reserved for your party for two nights. Your reference number is UXR0PYQD.

U: Thank you I also need a train departing from cambridge on Saturday.

S: There are over 200 trains that leave Cambridge Saturday, where are you headed?

U: Is the room centrally located?
S: Yes, Rosa's is in a convenient location near shopping and other attractions. Is there any more information I can find for you?