"There was a time when people worked on Christmas Eve. That's why it's an 'eve', you know: It's just the evening before, not the whole day."
"Well, strictly speaking, asking is just a formality. It's more to notify you than anything else."
"Nevertheless, it would be good if you could come in. With the year-end approaching, we'll need your help."
"You sound like you actually believe that," he said with a chuckle. "We both know that nobody has to be here. Heck, give everyone the day off and let an AI fill in. It's not like they're hard to find."
"You know that inconvenience isn't that point. Sure, I could give everyone Christmas Eve off. Then again, I could give them Arbor Day, or, I don't know, August 8th for all the difference that it would make. I could give everyone every day off and just have robots run the whole business! That would defeat the entire point, though."
There was a pause as they both thought on the subject. They both knew why they were there. They didn't want to talk about, nay, didn't want to think about the fact that they didn't actually need to do anything. After all, in a post-scarcity world, there was plenty of value to go around. The 'business' just let them feel useful.
"So you'll be here, then?"
"Bright and early, 'boss,' bright and early...."