In certain hotels such acts require specialized personnel in charge of booking and organizing everything related to the use of rooms for conventions and material outsourcing. In hotels accommodation capacity reduced, there is often a professional figure called responsibilities of groups and conventions, which is responsible for managing group bookings (can be considered as a group, a minimum of 6 rooms in a hotel of 50 rooms) and the trading, monitoring, sales and organization of different events that can develop into a hotel and can be a Congress, a convention, seminar, Show Room, etc … In most cases this person usually belongs to the Commercial Department of the company, but there are companies belonging to the Front Desk Department as the sale of the event is carried out by Marketing Executives. In this case the charge of groups and conventions, is responsible for organizing the event once the sale is closed.