Messer didn't answer Hadley first question about 'what's going on' because he didn't actually know what happen with him.

Transportation? They were talking about Muggle Transportation? Hmm.. Okay. He knew about that, after all he did live in the Muggle world before he went to Hogwarts. The Hufflepuff was about to mention airplane but it already mentioned twenty times already. Hand up. "Professor, there's this thing called Motorcycle. It resemble a heavy bicycle and it powered by a motor." Hence why its called Motorcycle.