This is a flight that I booked. I went back and tried to select my seat when I realized after booking it that I could do that. It shows 3 "Preferred" seats open, but will not let me select them. Does this mean that every other seat on this flight is booked, and if someone who is "Preferred" gets those seats assigned then I am S.O.L.? I know airlines overbook sometimes, but I thought it was more of something where it could randomly happen to any passenger, rather than a very specific schmuck that bought a seat that never existed.