I'd like to confirm my reservation.

Meaning

Checking the status of a prior booking.

Examples

• John: Hello, I have a question about my booking.
• Alice: Certainly, sir. <b>I'd like to confirm my reservation</b> under the name John Smith.
• John: Can you please provide the confirmation number?
• Alice: Yes, of course. <b>I'd like to confirm my reservation</b> for the flight to Rome.