Delta Airlines, a major U.S. airline founded in 1924, operates a vast network of domestic and international flights, headquartered in Atlanta, Georgia. The airline has a cancellation policy that includes a 24-hour risk-free cancellation option, and offers both refundable and non-refundable tickets with specific rules, notably for basic economy fares. Additionally, Delta provides a reservation service with features like flight booking, seat selection, and customer support, as well as policies for name changes on tickets.