GSA referring to General Sales Agent is the sales representative for an airline in a specific country or region. A GSA is responsible for the sale of air tickets and other facilities of the specific airline. A GSA locally represents an airline in areas where the airline does not operate directly. For sales services, a GSA is entitled to receive commission on the sales of that specific region. A GSA has to open its own office and run the business in that particular region under its own responsibility. Sales and promotion within the region is also the responsibility of the GSA. A GSA itself is not the airline but represents the brand of the airline.