With due respect, my name is _____ (name) and my employee ID number is ______ (mention your employee ID).
I am writing this email to bring to your urgent attention that due to __________ (mention reason) it is not possible for me to attend the office for the next _____ (days).
Kindly, sanction me leave from __/__/____ (date) to __/__/____ (date) as I have to go to ________ (mention reason) in emergency. I hope that you will support me in this emergent situation and approve my leave request.
Thank you for your understanding and support. I shall be highly obliged.
_________(Employee ID number),