He thought it was a little weird but he thought her costume was too so that's okay. Probably he has a light accent just from being from another world. He sounds like one of those bookish people who might have spent a lot of time in New England or maybe real England.

"Part of it. It's not completed yet, and there will be a testing process to make sure it works efficiently." He has one a lot like it! He sits down after she has because that is gentlemanly and he pours the tea for her. When he sets the teapot down it hops in place a little because it recognizes Sarah and is happy to see her!

"It is... Thorn is a very good worker, very industrious. The furnaces make it much warmer." And brighter, and more homey feeling with someone else around. He's feeling kind of lonely without his assistant but he doesn't really know it.