Now the booking process for children travelling as an unaccompanied minor (UMNR), Austrian Airlines, Lufthansa and SWISS will become more flexible. The enhanced use of EMD on connecting flights provides the following: it no longer matters which of the three airlines operates the flight, which flight number (OS/LH/LX) is booked, or which document (OS/257, LH/220, LX/724) is issued with the ticket or EMD.