I need a guesthouse, with free parking. 
There are a few options meeting your requirements. What area should the guest house be in?
I would like it in the cheap price range in the west.
The Finches Bed and Breakfast fits those requirements. Would you like me to book that for you?
Actually, I don't care what part of town it is in.  I just need 4 stars.  Does The Finches offer that?
Yes they do have four stars. Free internet and parking, may I book that for you?
Yes please, just for 1 person for 2 nights starting on Monday.
I'm sorry, it wasn't available.  I did book a room at the Alexander Bed and Breakfast.  It is a cheap 4 star with free parking. Reference number B4IRJDNN.
Thank you for the reference number B4IRJDNN. Goodbye.
Goodbye! Have a great day!