French phrase
Peut-on prolonger ~ ?
Meaning
Is it possible to extend ___?
When to use it
A neutral, polite request to extend something. It is useful when changing a reservation or stay and asking about additional charges.
Example dialogue
Peut-on prolonger notre réservation d'une nuit ?
Is it possible to extend our reservation by one night?
Oui, c'est possible, il y a un petit supplément.
Yes, that's possible. There is a small additional charge.