Well, he certainly hadn't heard that (or at least some variation of it) before. He disguised a chuckle as a bit of a cough.

"It's a pleasure to make your acquaintance. Are the lodgings to your liking?"

Klaus had never actually met an elf before. To be fair, a pair of pointed ears wasn't much of an indicator of being otherwise human when you came from a city mixed with interdimensional aliens and all other manner of supernatural beings.