Originally Posted by
ptr120
From what you've posted I'm assuming that this is a TA booking? If you are confirmed on one flight but waitlisted on another it might be that your TA hasn't ticketed yet which could also explain why you can't book a seat on the flight you are confirmed on.
Yes, spot on, this is a TA booking. There's no e-ticket number so I do believe you are right that it hasn't been ticketed yet.