Good point. Just say on their honeymoon and it's hard to believe they would have bumped them.
"It's our honeymoon, we need to get on this flight!"
"Awww, that's adorable, let me see what I can do."
Goes to the back to speak to a supervisor.
"There's this couple we wanna bump but they claim they're on their way to their honeymoon."
"Don't you dare kick them off. The optics of bumping a couple all over each other will be awful."
"That's the thing. They won't do much as touch each other."
"That's pretty sus."
"And they're heading to DTW."
"Bump them and call the call the cops."