Senior Moderator, Moderator: Community Buzz and Ambassador: Miles & More (Lufthansa, Austrian, Swiss, and other partners)
Join Date: Jun 2005
Location: 150km from MAN
Programs: LH SEN** HH Diamond
Posts: 29,514
The best option is for your friends to ask airline personnel. It’s a reasonable question to ask and if they know the reason they will tell your friends. It may not be 100% accurate but at least it’s a start.