Originally Posted by
AAaLot
Same error here:
"We are unable to confirm the fare for the flights you have selected. Please choose a different fare or flights and resubmit your request. (15012)"
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update
I was trying to book 3 & 2 children.
When I split the reservation into two: adults // 1 adult & 2 children then I was able to book.
My first segments were ICN-NRT-USA booked into AA Amadeus.