Activity
- https://community.hologram.io/t/faq-united-can-i-cancel-my-united-airlines-flight-without-penatly/23382
- https://community.hologram.io/t/cancellation-tips-what-is-the-cancellation-policy-of-united/23363
- https://community.hologram.io/t/understanding-united-what-is-the-cancellation-policy-of-united-united-faqs/23330
- https://www.devex.com/people/what-is-the-cancellation-policy-united-2267890