A confirmed reservation to MCO with an ATL layover was changed by Southwest about 5 weeks ago. Southwest eliminated the originating flight to ATL and renamed the trip ‘ATL-MCO’, totally changing the itinerary. As the system would not allow me to make changes, a DM was sent to @SouthwestAir. After days passed, with no response, I called Southwest. The agent indicated the reservation was in limbo, as it showed it as not ticketed, due to the originating flight being dropped from the schedule and there being no other suitable options. I check the schedule every few days, or so, now, to get a heads-up on other such mess ups. Nowadays, you never know what might happen. With other customers affected by changes, as well, I want to be sure to have the option to move to the best flight(s), before available seats are snapped up by others, also needing to rebook.