What is the cancellation policy for United Airlines?@1~888~551~4970

https://community.smartsheet.com/discussion/126435/what-is-the-cancellation-policy-for-united-airlines-1-888-551-4970/p1?new=1

https://community.smartsheet.com/discussion/126435/what-is-the-cancellation-policy-for-united-airlines-1-888-551-4970/p1?new=1

https://community.smartsheet.com/discussion/126435/what-is-the-cancellation-policy-for-united-airlines-1-888-551-4970/p1?new=1

https://community.smartsheet.com/discussion/126435/what-is-the-cancellation-policy-for-united-airlines-1-888-551-4970/p1?new=1