Earlier, you need to call the mentioned phone call number.
If you are under the call then, you must choose the comfortable language by pressing 1.
If you wish to book the cheapest flight deal, press 2.
Looking for a rebooking, refund, or flight change, press 3.
Having an issue with the travel itinerary, press 4.
Want to get compensation or cancellation, press 5.
Searching for special assistance, press 6.
For complaints, feedback, or reviews, press 7.
Press # to talk to a live person at United Airlines.
How do I talk to a live person at United Airlines?

If you understand how to talk to a live person at United, you will get plenty of benefits such as:

Get the instant solution with proper guidance.
Flyers will get assistance from experienced and talented live people.
The phone or live chat facility is working 24/7 without any cost.
Get a remote system-sharing facility where anyone will get sufficient help from anywhere.