Originally Posted by worldlygator

Hi I have been having the same issue!
Has anyone figured this out yet? I have been having issues all year booking for a family member and end up not being able to book. Using same exact methods as the last 10 years I have been doing this online. Called and they wanted to charge to create ticket over phone and they could not help with the error.

Why would it matter if the flight is on a partner airline?
Thank you!