It is very easy to do. First, you need to open the booking page on Booking.com. You can do this in three ways:
- Open the booking confirmation email, then locate and click the "Modify your booking" button. Clicking the button will open the Booking.com website with the booking details.
- Follow this link and enter your reservation number and PIN (you can find it in your confirmation email), then click Go to open the page.
- You can log into your Booking.com account > click on your avatar in the top right corner of the page and open the "Bookings" section > select the hotel you want > click on "View booking".
Then, on the page that opens, you will only need to click on the "Cancel your booking" button.
Here you must specify the reason for cancellation and confirm it by clicking "Yes, cancel this booking".
A cancellation notification will be emailed to you within minutes.