Today, Labor Day, September 7, 2020, is the last day to cancel your reservations and get an extension of expiration to September 2022.
This is also your last opportunity to create travel funds which are eligible for conversion to Rapid Rewards points. Only travel funds with that 2022 expiration date can be converted.
Barring any new announcement by Southwest, any ticketless funds you create after today will not be eligible for expiration extension or conversion to points.
See the discussion at:
Reminder -- Act TODAY to protect your pre-COVID-19 Travel Funds
Extensions of Elite Status, CP, Travel funds, and option to convert funds to points
Funds to Point Conversion Now Live!