Https://amtrakoig.gov/sites/default/files/webform/foia_form/_sid_/1-877-245-9984-can-i-change-the-flight-day-on-klm-airlines-complete-guide-2025.pdf https://amtrakoig.gov/sites/default/files/webform/foia_form/_sid_/1-877-245-9984-can-i-change-the-flight-day-on-klm-airlines-complete-guide-2025.pdf