https://superuser.com/questions/1882117/faqs-ful-guide-what-is-flexible-cancellation-priceline
https://superuser.com/questions/1882117/faqs-ful-guide-what-is-flexible-cancellation-pricelinehttps://superuser.com/questions/1882117/faqs-ful-guide-what-is-flexible-cancellation-priceline