KLM's policy typically does not allow for name changes on tickets once they have been booked. +1-866-829-1174 for U.S.or +44 8085 99 8703 (U.K) However, they do offer the possibility of making minor adjustments, such as correcting spelling errors or fixing small typos in the name, upon request. If you need to make a significant name change, like altering the first or last name, it is usually required to cancel the existing ticket and rebook a new one with the correct details. It's important to note that these rules can vary depending on the specific circumstances of the ticket or fare class, so it’s always a good idea to contact KLM's customer service directly for the most accurate and up-to-date information regarding your situation. You can reach them at +1-866-829-1174 for U.S.-based inquiries or +44 8085 99 8703 for those calling from the U.K.