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LISBON, PORTUGAL - DECEMBER 13: TAP Air Portugal main shareholder David Neeleman delivers remarks on the company's present and future during a Christmas lunch offered to members of the press on December 13, 2018 in Lisbon, Portugal. The carrier's main announcement was the start of the non-stop flights Lisbon- San Francisco, USA, starting on June 10, 2019 with five flights a week. (Photo by Horacio Villalobos - Corbis/Corbis via Getty Images)

LISBON, PORTUGAL - DECEMBER 13: TAP Air Portugal main shareholder David Neeleman delivers remarks on the company's present and future during a Christmas lunch offered to members of the press on December 13, 2018 in Lisbon, Portugal. The carrier's main announcement was the start of the non-stop flights Lisbon- San Francisco, USA, starting on June 10, 2019 with five flights a week. (Photo by Horacio Villalobos - Corbis/Corbis via Getty Images)