Originally Posted by
blueslip
Good to know someone confirmed what I read but could only speculate it. Where can this be accessed online? If I will be checking in say in MIA to SFO and the IAH-SFO is oversold, can I ask the agent in MIA to put me as a volunteer for the IAH-SFO flight?
Use the kiosk. It should ask you if you'd like to volunteer. The GA or check in agent can also add you to the list.
But the most important person to see is the GA for the flight that is overbooked. They control who gets the bump.