Don't know about Lufthansa but if it's any thing like SAS 2nd interview then it's just a pure lottery. SAS demand a 3rd language with certain capability, ie able to hold basic conversation but you still have a chance if you can't speak at all. Many I know have got jobs with the lowest grade on their particular language but those who can a 3rd language get no where. SAS it's all in the attitude, "Nasty"