kksmom,
You will simply go to the SW menu and click on Travel Center. Once you're on the TC page scroll down to change air reservations. You'll need to key in your info (ressie # and name/cc used when ressie was purchased). All of your original ressie info will come up and you just click on the box for changing it. A new screen will come up for the changes. One thing to keep in mind......sometimes when a sale is announced the particular flight your on may or may not have seats at the sale price. If this is the case you can either change your flight from this screen to another flight (same date, different time or even a different date) at the sale price or keep your original ressie. The change won't go through unless you go to the bottom of the screen and ok it. Then, after any changes you make you will see (on a second page I believe) the ticketless travel funds you have available from the change. So, if you're planning a trip for November, as long as a sale happens for the first week of October BEFORE the November schedule is released and you have made your ressies, then yes you will have your TT funds available for the November trip.
So now I have $30 sitting there to use for our November flights! 
