Same reservation, SK 1675 outbound, SK 1676 inbound. She said she couldn't do it, something along the line "if self-service machine can't do it, than neither can i". She did looked up my booking, and i hope she tried to check me in, and not just brushed me off. I thought the she just didn't know how to do that (its not connecting flights after all), and there was no other check-in desk available.