They stop and Aziraphale says nothing for a bit as he catches his breath before he realizes that, he's still got his angel body and that means he doesn't actually require lungs, so he wills them away and therefore, is perfectly fine a moment later, just adjusting his hair and his bowtie.

"They'll be surprised to know I'm not exactly that young," he replies, a little disdainfully, since he looks middle-aged but that was mostly a choice to get people to leave him alone at the time.

"What is your name, by the way? I'm Aziraphale."