She's the perfect candidate for the job, but I need to confirm her 'availability'. [=I need to make sure she is available]
The woman who answered the phone said, “I'm sorry, but Mr. Adams is not 'available' right now. May I take a message?”
He wanted to ask her on a date, but wasn't sure if she was 'available'. [='single']
(..) the Wayne Enterprises board. He let most of 'em go, but he took three of them into the sewers. No more patrols. No more hide and seek. Get every available cop down there and smoke 'im out! - The mayor won't want panic. - So, it's a training exercise? I'm sorry I didn't take you seriously. (..)2012 The Dark Knight Rises