I need to cancel my reservation.

Meaning

Informing of cancellation of booking.

Examples

• John: Hello, I need to make a change to my booking.
• Alice: Certainly, sir. What can I assist you with?
• John: <b>I need to cancel my reservation</b> for tomorrow night.
• Alice: Okay, I understand. <b>I need to cancel my reservation</b>. Can you provide me with your booking reference?