https://www.devex.com/people/changing-course-hassle-free-southwest-flight-cancellations-2309593
https://www.devex.com/people/southwest-simplified-how-to-cancel-your-ticket-today-2309602
https://www.devex.com/people/ticket-troubles-canceling-a-southwest-flight-stress-free-2309615
https://www.devex.com/people/westjet-wanderers-canceling-flights-made-simple-2309887
https://www.devex.com/people/canceling-a-westjet-flight-your-ultimate-step-by-step-guide-2309942