catering enterprises, travel companies and travel agencies, airlines, gyms and spas.

1. Travel companies and travel agencies: Hotels and travel companies and travel agencies usually cooperate to provide tourists with a combination package of hotel accommodation and travel services to increase the attractiveness of customers.

2. Airlines: Hotels and airlines usually cooperate to provide tourists with a package of air tickets and hotel accommodation to attract more customers.

3. catering enterprises: hotels and catering enterprises usually cooperate to provide catering services for guests, such as breakfast, buffet and hotel restaurant.

4. Gym and SPA: Hotels and gyms, SPAs and other leisure and entertainment institutions usually cooperate to provide guests with fitness, massage, spa and other services to improve customer satisfaction.