https://www.devex.com/people/qantas-cancellation-does-qantas-have-a-24-hour-cancellation-policy-2088424
https://www.devex.com/people/jetstar-cancellation-policy-is-it-possible-to-cancel-a-flight-with-jetstar-2088423
https://www.devex.com/people/does-virgin-australia-have-a-24-hour-cancellation-policy-2088422
https://www.devex.com/people/does-jetstar-offer-24-hour-cancellation-2088431