"Commander Spock of Starfleet." He's actually a little relieved that he hasn't been met with the usual human attempt at a handshake that tends to come with an introduction.

"There are no pardons required. If this is your first time in space, I am told that there is adjustment required when one is unprepared."

That seems like the right word to cover a variety of possibilities, from someone who simply hasn't planned on being in space to someone raised in a time or place where space travel hadn't seemed as near a possibility as it had always been to Spock on Vulcan.