In the tourism and travel business, aggregator plays a vital role. They assist individual or group wishing to take trips, planning itineraries, making transportation, hotel and tour reservations, obtaining or preparing air tickets and performing related services. The travel agency provides a retail service and tour operator is wholesale business in the travel market. A wholesaler business buys products from a vendor and resells them to another business.
A wholesaler does not sell products to the general public. The tour wholesaler assembles the package vacations and offers it to retail travel agency to sell it to the public. Travel agency can be viewed as an organized set of activities for coordinating and integrating the use of resources to accomplish the organizational purpose of selling travel.