French phrase
Je souhaite demander ~.
Meaning
I would like to request ___.
When to use it
A formal way to make a request. Used at an office or service desk; polite and slightly formal.
Example dialogue
Je souhaite demander une prolongation de visa.
I would like to request a visa extension.
D'accord, avez-vous tous les documents ?
All right, do you have all the documents?