I'm trying to book the direct flight PHX-EWR on 3/1 at 1pm (UA1552). Without logging in, there is no saver availability. With the expanded availability there are 5 tickets in coach on the saver level. I booked the route in April to avoid the close-in fee, however when I tried to change the booking to March 1st there was no saver availability on that flight. Is there anything that would help, such as calling up the airline? Or the expanded award seats don't work for this?