May I ask for a coupe of days off?
I have to ask for leave tomorrow morning.
I would like to take today off and hope you can approve it. I apologize for the short notice.
I am planning to take the following week off for vacation, and would need your approval.
I'm afraid that I can't come in today due to a family emergency.
I got some family issues that I need to take a day off.
I am taking off next Friday because I have a wedding to attend and have to catch the train early in the morning. I'd appreciate it if you could approve it.
Mr Smith, my dad's here visiting me and I'd like to take two days off to show him around the city.