My wife is helping out with a family member who has some medical issues in another city in the United States (halfway across the country). Initially she planned to go for only two days, as it wasn't clear what the situation was, but when it became clear it was more serious we rebooked her flight (on Southwest) for a few days later.
Now, it's become clear she needs to stay yet another few days, and I'm rebooking her again. So far this hasn't caused any problems - there are a few flights a day between our airports and one always seems to be the same price as the initial one - but I'm wondering if there are eventual consequences for rebooking flights quite a few times, especially with only a day or two's notice each time.
I don't see anything regarding limiting rebookings in the contract of carriage, but I'm really asking from a more general sense: is this likely to cause issues in the future, either with security, with the airline, or anything else I'm missing? Should I do anything to let Southwest know why we're making these changes (as they're related to a medical situation)?
If it's relevant, they're nonrefundable tickets (that I'm not asking for a refund for, of course, just rebooking).