In 1950 American Airlines decided to set up a computerized system that would allow real-time access to all its data across all its offices and travel agents
As a result, Semi-Automated Business Research Environment, or SABRE was born in 1964. It was the first computerized airline system (CRS) in the world
SABRE was developed as a joint effort between IBM and American Airlines
Upon confirmation from the customer, travel agent would call the airlines back to reserve the seats