This is good to know. I actually stopped booking flights thru travel agents years ago after trying, and failing, to do exactly this. I don't remember the airline, but I do remember the airline representative telling me that they couldn't help me since I booked thru a TA. They said I'd have to contact the TA and have them make the change. Since time was short, I wasn't able to get my TA to help. Since then, I've always booked flights myself. Good to know things are changing, or perhaps my experience was a one-off.