What should I do if I booked a flight platform and canceled it without informing me?

You can claim damages through litigation.

When the flight is delayed or cancelled, the airline shall promptly notify the passengers of the flight delay or cancellation. If you buy delay insurance, you can compensate directly according to the insurance. If you don't buy delay insurance, you may only get the expenses you spent when buying air tickets. The Civil Aviation Administration has given guidance on the need to compensate passengers for delays (more than 4 hours) caused by airlines themselves.

How to change the ticket:

If the ticket needs to be changed, the simplest and most convenient way is to call the airline customer service phone directly to change it. If the airline calls, friends can simply check online, or directly dial 1 14, and then call the airline customer service phone directly according to the voice prompt to change the ticket and wait for the connection. Tell the airline to change the date, and after checking.

The airline will inform the change fee and policy by phone, and pay by credit card or bank card or other ways recognized by the airline according to the customer service prompt. After confirming the deduction, hang up and wait for the change success message. After the message of successful change is sent out, remember to board the plane according to the confirmation information after the change, usually two hours in advance.