If you work at Lufthansa, I'd ask a buddy of yours who works at the ticket counter to give you numbers regarding the seat availability (also in First/Bus class).
Whether you get a flight or not depends on whether or not the flight is fully booked, but also your ID
status. When I worked at OS
we handled all LH
flights and I must admit they've got a quite complex system to determine your priority.
Seeing though that you are an LH
employee flying on LH
, there will not be many more people above you priority wise. I'd say pick a flight that's not full, turn up for check-in and you'll have good chances. Try your luck!