Room service or in-room dining is a hotel service enabling guests to choose items of food and drink for delivery to their hotel room for consumption. Room service is organized as a subdivision within the food and beverage department of high-end hotel and resort properties. It is uncommon for room service to be offered in hotels that are not high-end, or in motels. Room service may also be provided for guests on cruise ships. Room service may be provided on a 24-hour basis or limited to late night hours only.
https://en.wikipedia.org/wiki/Room_service