[Ah, called out. That gets another amused huff out of him, closer to a proper laugh this time.]

Guilty! It's been a long time since I could chat with a colleague this casually.

[If he misses anything about working at a hospital, it's the social aspect. He's enthusiastic...!]

But you're right again: I don't recognize the names. I don't suppose you know Dusseldorf University, in Germany...? That's where I studied.