French phrase
Comment prouver ~ ?
Meaning
How do I prove ___?
When to use it
Asks how to provide evidence of a reservation or procedure. It is useful when asking what confirmation documents to present.
Example dialogue
Comment prouver ma réservation ?
How do I prove my reservation?
Montrez l'email de confirmation ou votre reçu de paiement.
Show the confirmation email or your payment receipt.