https://www.sweetprocess.com/kb/60zps5KYvBi9QO/article/ka3RtkfMRbm/understanding-cancellation-is-expedia-really-free-cancellation/
https://www.sweetprocess.com/kb/60zps5KYvBi9QO/article/ka3RtkfMRbm/understanding-cancellation-is-expedia-really-free-cancellation/