I think the confusion here is much more basic: what does it mean to “sell flights” and why would I do it? How do I know if I’m someone who can sell flights? I in fact don’t own an airline, so what does that mean!

I suspect there’s a bit of “curse of knowledge” at play here. You’ve spent a bunch of time in this space and we haven’t. If your target audience is all people who know this stuff then this might not be a problem, but just thought I’d try to clarify.