Tourism industry is one of the human activities that has benefited greatly from Information Technology. This paper presents a conceptual model for accommodation in tourism industry. This model shows how recommendation system improves tourism services. This system is a subsystem of Decision Support Systems and includes various elements such as management model base, data model base and user interface. This system receives the tourists' conditions and preferences from user interface and proposes a range of choices to them. So tourists can select the best choice among the proposed choices in respect to his or her preferences and reserve an accommodation.