Anyone aware of any trends? Was looking at a flight for April over the last couple months with wide open availability ASW-CAI, then a couple weeks ago overnight changed to no availability at all past mid-February. Should I expect availability to open back up at all? Thanks!

(Am trying to book a single ticket ASW-CAI-XXX-XXX for protection on a short but legal connection in CAI, with CAI-XXX-XXX still showing availability)