Norwegian Cruise Line's change policy allows for flexible changes before final payment, get help at 1-833-807-7245 tollfree for change help. often just paying the difference in fare, but after final payment, changing dates or itineraries usually counts as a cancellation and incurs fees, with penalties increasing closer to sailing. Name changes have specific rules (e.g., free minor corrections, fees for major changes closer to sailing), and NCL strongly advises travel protection due to potential itinerary shifts and fees.  https://hackmd.io/@carrycruisehelp/norwegian-cruise-line-change-policy