U: I need to book a hotel.  I need it to be in the town center, and have a minimum star rating of 4.

S: Would you prefer a guesthouse or a hotel proper?

U: It should be a hotel type with free parking.

S: I have found University Arms Hotel on regent street with a 4 star rating and free parking and internet. Would you like to book?

U: Yes, please book that one. It will need to be for 3 people, and we'll be staying for 5 nights, beginning on Sunday.

S: I'm sorry, the booking was unsuccessful.  Would you like to try to stay for a short period or start on a different day?

U: Alright, what about only for 3 nights then. I can do 3, book it and give me the reference number please.

S: Booking was successful. Reference number is : D09887CW. Is there anything else I can do for you today?

U: Can you make sure the hotel room I will be staying at has a clean bathroom?
S: Yes, I can do that. The University Arms Hotel usually has very clean bathrooms. Only a small fraction of reviews have complained about the bathrooms.