The corporate policy for all major hotel chains is to not speak the room number. This arises from sexual assault cases a couple of decades ago where courts have held it was negligent to speak the room number where others could possibly hear. Of course, how this filters down to someone working in a bistro at a franchise Courtyard and Ontario ... on the other hand, the folks at the Sheraton in Argentina, Marriotts in Asia, autograph in Spain, and other hotels around the world seem to get it as a general rule.