Slightly late to the party, but for what it's worth (and to add to what others, especially demue, have already said): It's your honeymoon and the best people to decide what would make it more special are you and your spouse. If that includes caviar, consider visiting the airport caviar bar or booking a suitable table at your destination.

Treat yourselves and/or one another, rather than hoping for acts of kindness from strangers or airlines!