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QUOTE:
Southwest Airlines Cancellation: If you are willing to cancel a booked flight ticket then you must have to be proactive to go through the Southwest Airlines check-in process helps to change and cancel a flight ticket in no time. It would be good in case you feel like obtaining the policy in order to cancel a flight ticket and want a complete refund as well. UNQUOTE
And what was the "June 2021 mess" in the article text above?