United Airlines had to swap out Boeing 777 aircraft for a Saturday flight from Newark to Hawaii, resulting in a reduction of business class seats.
원문출처 : https://www.cnn.com/travel/article/united-airlines-downgrades-passengers-travel-vouchers/index.html
원문출처 : https://www.cnn.com/travel/article/united-airlines-downgrades-passengers-travel-vouchers/index.html