Pre-brief
Aircraft: Airbus A320
Callsign: Austrian 125
Route: Frankfurt (EDDF) to Vienna (LOWW)
Current state: You are in the cruise at flight level 340 in smooth air, under radar control with Munich Radar. The Captain is the Pilot Flying; you are working the radio.
Souls on board: 156
Your role: First Officer, working the radio (Pilot Monitoring)