Frankfurt / Main (dpa) - After the warning strike by the flight attendants at four Lufthansa subsidiaries, the flight operations today started back to normal. "We can fly our usual offer," said a corporate spokeswoman in Frankfurt. She confirmed the estimated number of about 100 launches that had to be canceled yesterday due to the strike at German airports. Lufthansa was not able to let go of the work stoppages organized by the union Ufo completely into the void.