https://patch.com/new-york/new-york-city/calendar/event/20241130/101a3a1d-ef1a-4723-a313-bea38e64984f/quick-guide-what-is-the-cancellation-policy-for-united-airlines
https://patch.com/new-york/new-york-city/calendar/event/20241212/54613420-4816-425d-9942-3faaa07e991f/1-does-klm-allow-cancellations