These two people were simply the nearest ones available to do the job.
From her interview, it sounded like air defense of the continental U.S. was completely down since the threat of the Soviet Union was no longer there. We did not have a “scramble ready” strike force of any kind.
I listened to it a couple of nights ago so I may be wrong, but I think it took a couple of hours for NORAD to get armed planes out over the Atlantic as well.