Thank you for the advice. I didn't realize I could change my permit reservation after I confirmed. I just freed up the two permits today and am happy to open up two slots for other hikers. I realize how challenging it can be to obtain permits, so I was just interested in making them available for others. Steve C - you make a good point about the "group leader" situation. I certainly wouldn't want to be responsible for others obtaining a permit under my name.
Two weeks from now, I hope to be posting my first successful trip report to the summit.
Thanks!
JKim