I have a transfer flight in Vienna and it is transferring to Polish LOT airlines, I do not have a seat assignment, they said you have to do it at the airport, but I do not think I will get one at my city of departure as it is outside of Europe. At transfer in VIE, is there a transfer desk to get a seat assignment? Or do I have to exit and go back to the counters? Or wait for the gate to open to get a seat assignment? I am not even sure I will get a boarding pass at origin.