On ITN, if you DO NOT select advanced settings (that's where you see fares like so: F7 C7 J7 A7 B7 C7 D7 etc), you see something like the following:

First WL, Biz WL, Coach Y
First Y, Biz WL, Coach Y

Basically, your choices are:
First (if such cabin): Y or WL
Biz (if such cabin): Y or WL
Coach: Y or WL

What is the difference between Y and WL. Does WL stand for wait-list?

Thanks.

biz