I have Platinum on AA, which is Sapphire OneWorld. I want to book a flight on Iberia, and want to make sure I get benefits like my free checked bag. If I book directly with Iberia it doesn't know anything about my AA status.

I want to book a domestic Spain flight and these aren't showing up on AA search. Can I book by dialing into AA, or do I have to book them with Iberia. And if so how do I make sure my status gets recognized.

Thanks!