Global distribution systems have significantly changed the way people traveled and the work of travel companies as well. With GDSs, independent travel agents, travel companies, and online agents have a remote access to airline reservation databases, can place remote bookings (thus automating the booking process), and meet their customer needs by looking the database for the best available offers. Also, GDS systems provide such travel-based technology services as airline information technology products and revenue management tools for hotels, airlines, and car rental agents.