You can cancel any flight booked through 𝗨𝗻𝗶𝘁𝗲𝗱 Airlines either online or with a live agent. Whether your ticket is eligible for a refund depends on what type of airfare you bought and when you bought it. Can you cancel a flight with United Airlines and get your money back?
https://www.devex.com/people/can-i-cancel-my-united-flight-without-penalty-2008000
https://www.devex.com/people/does-united-airlines-have-a-cancellation-policy-2008234
