The Ufo union is calling on some 19,000 flight attendants at German carrier Lufthansa and its subsidiary Lufthansa Cityline to go on strike on Tuesday and Wednesday, the union announced. The strike will affect all departures from Frankfurt from 4 am (0300 GMT) to 11 pm on Tuesday and all departures from Munich on Wednesday, the union said. Ufo emphasized that Lufthansa had only recently announced a record result of almost €1.7 billion ($1.86 billion) in net profit on Thursday – the third best in the group’s history. “The cabin must now also be involved in this success and the concessions made …