Originally Posted by
JanoS-
I try to book LHR-LAX, and on dates that I see availability L3 in EF, the booking tool offers no availability on AA. On dates with L7 it works.
EDIT: I just found out that Seatcounter says L0. So probably it is not fault of online tool :/
Don't forget availability tools are just a guide as other constraints may apply. Eg point of sale, married segments, etc.