B2B Hotel reservation system By default, the corporation uses three levels of access to the features included in the application. These levels (roles) are: administrator, manager and travel. Each level is related to the appropriate permissions. The distinction is so designed that the most expanded is the role of administrator, then manager and the most limited access is assigned to the traveler. In addition, every corporation has the possibility to create and configure their own roles, the most appropriate for the structure of the company.