https://webapps.stackexchange.com/questions/179310/hawaiian%ef%b8%8f%e2%87%92%e2%87%92-hawaiian-cancellation-policy-policy
https://webapps.stackexchange.com/questions/179310/hawaiian%ef%b8%8f%e2%87%92%e2%87%92-hawaiian-cancellation-policy-policy