G2S (GDS to Service)

G2S (GDS to Service) is a communication protocol that enables a Global Distribution System (GDS)—a computerized network used by travel agencies to access travel services like flights, hotels, and car rentals—to interact seamlessly with airline or hotel service systems. It allows agents to book, modify, or cancel reservations directly through the GDS, which then relays these requests to the service providers. Essentially, G2S facilitates efficient, real-time connectivity and transaction processing between the centralized booking platforms and individual service providers, ensuring accurate and up-to-date availability and reservations.