Activity
- https://www.devex.com/people/premium-cabins_what-to-expect-when-you-fly-united-airlines_bus-class-2197345
- ihttps://forum.woimortal.com/forum/community/discussions/263618-%F0%9D%95%A4%EF%BD%86-%EF%BD%81-%EF%BD%91-%E2%93%9F%E2%93%94%Ehttps://fo%9D%90%9A%E2%84%93%F0%9D%93%89%D7%A5-can-i-cancel-my-%F0%9D%95%8
- https://crm.ridemetro.org/forums/general-discussion/942734b0-4ebc-ef11-b542-001dd80082b2
- https://www.devex.com/people/free-cancellation-can-i-cancel-my-united-flight-free-of-charge-2197278
