I will be attending our meeting this afternoon as scheduled.
Unfortunately, after organizing most of the project for our department, I am unable to attend the programme on Tuesday due to a family emergency. Please note I am filing an official leave of absence on that day, please kindly send notice to the accounting department not to deduct a day's work from my salary. I hope you understand my predicament and the hard work I also put into the present programme.
Hoping for your approval.