An infirmary likely wouldn't do him any good personally, but it certainly seemed like a glaring oversight for normal people. Or non-normal people who now had to deal with being normal.

"You don't have to thank me again, it was the right thing to do." It certainly sounds like A Line, but he's earnest when he says it. Like it was a forgone conclusion.

"I'm Jet. Jet Link, nice to meet you."

Once they got to the spa, Jet held the door open for Aziraphale, but hung back by it to wait for him to find wherever this kit was.