Https://riversideca.gov/sites/default/files/webform/musueum/covid/Quickly%20Call%20United%20Airlines%C2%AE%EF%B8%8F%20Customer%C2%AE%EF%B8%8F%20Support%20%E2%80%93%20Full%20USA%20Contact%20Numbers%20Guide.pdf https://riversideca.gov/sites/default/files/webform/musueum/covid/Quickly%20Call%20United%20Airlines%C2%AE%EF%B8%8F%20Customer%C2%AE%EF%B8%8F%20Support%20%E2%80%93%20Full%20USA%20Contact%20Numbers%20Guide.pdf