French phrase
Êtes-vous disponible le ~ ?
Meaning
Are you available on ___?
When to use it
Checks availability for a proposed time. Polite and suitable for scheduling.
Example dialogue
Je propose une réunion. Êtes-vous disponible le lundi matin ?
I propose a meeting. Are you available on Monday morning?
Oui, lundi matin ça me va.
Yes, Monday morning works for me.