Written by Jamie Wahls and published in Strange Horizons in 2017. A humorous short story that's ultimately about the continued need for altruism even in the far future.
I'm just including a short excerpt from the start because of copyright.
He's shivering as he emerges from the pod. No surprise, he was frozen for like a billion years.
I do all the stuff on the script, all the "Fear Not! You are a welcomed citizen of our Utopia!" stuff while I'm toweling him off. Apparently he's about as good as I am with awkward silence 'cause it's not three seconds before he starts making small talk.
"So, how'd you get to be a. . ." He waves his hand.
"A Tour Guide To The Future?!"