Https://amtrakoig.gov/sites/default/files/webform/foia_form/_sid_/united-airlines-customer-service-phone-number-all-you-need-to-know.pdf https://amtrakoig.gov/sites/default/files/webform/foia_form/_sid_/united-airlines-customer-service-phone-number-all-you-need-to-know.pdf