[It takes him far too long to realise he has a message at all and even longer to work out how to listen to it. But, eventually, he manages both. By this point he's run into the other Warden in question and has an answer beyond a simple 'no' to give her. Unfortunately - if that was all he had it would at least mean he could keep this short.

He holds off on replying as long as he can, still uncertain how he feels about the new Warden Cousland until his sense of duty finally prompts Alistair to call back.]

Warden, it's me. Which you must already know. [Great start there, just brilliant.] You were asking about the new Grey Warden who arrived. [There's a certain stiffness to his tone as he if he's a soldier reporting in to his commander. Which isn't far off the truth but it's rare to get such formality from him. His Templar commanders would be amazed at the feat.] I met him earlier. He's a mage from Ferelden. I don't know him personally but... He seems alright to me.

[That's about all he's got so far, for what it's worth.]