SYDNEY: A Qantas flight traveling from New Zealand to Sydney released a mayday call over the ocean Wednesday, and emergency situation services were responding.Qantas Flight 144 is because of land at 3pm at Sydney Airport.New South Wales Ambulance verified its paramedics were reacting to the mayday alert.FlightRadar suggested the flight is presently over the Pacific Ocean.A mayday call is released when a flight remains in grave and imminent danger and needs immediate assistance, according to Airservices Australia.