Https://policies.ucmerced.edu/sites/g/files/ufvvjh2091/f/webform/faaqs-full-list-of-united-airlines-customer-service-247-help-desk-number-a-assistance-guide.pdf https://policies.ucmerced.edu/sites/g/files/ufvvjh2091/f/webform/faaqs-full-list-of-united-airlines-customer-service-247-help-desk-number-a-assistance-guide.pdf