Originally Posted by
Often1
If you are asking whether DL could lawfully offer such a service, I suppose that it could. I am trying to think of something more brand-damaging which a company engaged in one business could do to itself.
Maybe that passenger would be thrilled. Maybe he was traveling to a funeral, cheating on his wife and doesn't want her to know, otherwise had a bad trip and takes the DL outreach the wrong way and switches to a competitor.
I have to presume that the HVC's who are the core of DL's profitability want a safe & clean aircraft piloted by professionals. If they want a confidential dating service, they can sign up for that.
Indeed, these are reasons DL might reject a deal. There is a limit, though: For $19B, one can buy a controlling stake in Delta Air Lines, Inc., and get what one wants. So it's just a question of how much the price can come down from there.
Everyone else here just said "no, can't be done", so I wrote what I might constructively attempt as a way to get in touch with the pax if my life depended on it.
I don't know that receiving an unexpected communication from an airline is all
that brand-damaging. A pax has to have a way (e.g., email) to be notified about the reservation in the first place, and sometimes there are follow-up surveys, so if the flight itself is a "secret" the pax has to consider that.