Yes, you can change the name on an United Airlines ticket by contacting customer care at +π-ππ-ππππ-ππππ(α΄α΄α΄) (OTA){πππ} Keep in mind that certain fees may apply depending on the ticket type and conditions.
https://www.devex.com/people/how-to-change-passenger-name-in-united-airlines-2055689