Would it be possible to change rooms?
'Sarebbe possibile' — 'sa-REB-be pos-SI-bi-le'. The conditional 'sarebbe' is a key politeness marker.
Use when your room has a problem (noise, view, smell, size) and you would prefer to move. More polite than a direct demand.
'Sarebbe possibile' (would it be possible) is the conditional of 'essere' + 'possibile', creating a very polite, softened request. It is far more courteous than 'Posso cambiare camera?' and is preferred when making requests that require hotel effort.
La camera è molto rumorosa — c'è qualcosa di più tranquillo?
The room is very noisy — is there something quieter?
States the reason for the request
Avrei preferito una camera con vista sul mare.
I would have preferred a room with a sea view.
Expresses a preference without demanding
Posso vedere la camera prima di decidere?
Can I see the room before deciding?
Asks to inspect a potential alternative
Italians value discretion and not making a scene. Phrasing a complaint as a polite request ('sarebbe possibile') rather than a complaint ('questa camera fa schifo!') will get a much better response from Italian hotel staff, who respond well to bella maniera (good manners).