With due respect, my name is ___________ (name) and I am working in your company for last ___________ (duration)
I am writing this email in order to request you to kindly grant me half day leave on __/__/____ (date) and the reason behind the same is __________ (mention reason – personal reason/ health issues/ any other).
I shall be obliged for your kind support in this regard. In case of any query, you can contact me at _____________ (contact details).
____________ (Employee ID)