"How kind of you." His default tone tends to be sarcastic. But really, he's a bit amazed and possibly wary of Luke after seeing that transformation.

A lot of things but a 'normal human' isn't exactly one of them. Then again, Soma isn't quite normal either...

"No, it's fine. Whatever form you choose is fine, just as long as we are still able to communicate..." And that answer would pretty much confirm it. While he doesn't like being randomly set up like this, a little small talk isn't too terrible. And thanks to this conversation, Soma has learned that people with interesting abilities have also been brought to this place.