The Sabre Reservation Course document provides training on using the Sabre global distribution system, covering topics such as signing in and out, encoding and decoding formats, using the Sabre Atlas distance calculator, building and modifying passenger name records, selling seats, waiting lists, queues and more. Trainees learn how to perform tasks like creating bookings, cancelling segments, dividing records, and accessing additional Sabre features and tools. Copyright and distribution restrictions are noted for the course materials.