Originally Posted by thinc

I have a question regarding the fare class. I was able to book two F seats LAX-NRT mostly painlessly. For reasons that are beyond to scope of my question, the two seats ended up being separate bookings with unique reference numbers. No problem, I just called ANA to link the two together. However, one seat shows the fare class as "First" while the other shows "First:O". What does the latter one mean?