The primary function of a GDS is to provide travel agents with real-time availability of flights, hotels, and car rentals. This allows agents to quickly and easily book travel arrangements for their clients.

Google Flights is a flight search engine, not a GDS provider. Amadeus, Sabre, and Worldspan are the three major GDS providers.

The role of a travel agent in the GDS is to book travel arrangements for their clients. This includes searching for flights, hotels, and car rentals, and making reservations on behalf of their clients.

The main difference between a GDS and an airline reservation system is that a GDS is used by travel agents to book travel arrangements for their clients, while an airline reservation system is used by airlines to manage their own reservations.

GDSs offer a number of benefits, including real-time availability of flights, hotels, and car rentals, the ability to book travel arrangements for multiple airlines and hotels in a single transaction, and the ability to generate invoices and receipts.

There are a number of challenges associated with using a GDS, including the cost of using a GDS, the complexity of GDSs, and the fact that GDSs may not be able to provide real-time availability for all airlines and hotels.

It is likely that GDSs will continue to be used by both travel agents and airlines in the future. Travel agents will continue to use GDSs to book travel arrangements for their clients, while airlines will use GDSs to manage their own reservations.

Technology has played a major role in the development of GDSs. Technology has enabled the development of more sophisticated and user-friendly GDSs, the integration of GDSs with other travel-related systems, and the development of GDSs that can be accessed via the Internet.

There are a number of key trends in the GDS industry, including the increasing use of GDSs by online travel agencies, the development of GDSs that can be accessed via mobile devices, and the integration of GDSs with social media platforms.

The GDS industry faces a number of challenges, including the rising cost of GDSs, the increasing competition from online travel agencies, and the need to keep up with the latest technology trends.

GDSs play a vital role in the travel industry. They enable travel agents to book flights, hotels, and car rentals, airlines to manage their own reservations, and online travel agencies to sell travel products and services.

GDSs offer a number of benefits for travel agents, including real-time availability of flights, hotels, and car rentals, the ability to book travel arrangements for multiple airlines and hotels in a single transaction, and the ability to generate invoices and receipts.

There are a number of challenges associated with using a GDS for travel agents, including the cost of using a GDS, the complexity of GDSs, and the fact that GDSs may not be able to provide real-time availability for all airlines and hotels.

It is likely that GDSs will continue to be used by both travel agents and airlines in the future. Travel agents will continue to use GDSs to book travel arrangements for their clients, while airlines will use GDSs to manage their own reservations.

There are a number of key trends in the GDS industry for travel agents, including the increasing use of GDSs by online travel agencies, the development of GDSs that can be accessed via mobile devices, and the integration of GDSs with social media platforms.