Respected Sir/Madam,
I would like to inform you that I am working as a part-time employee in your company for the last ________ (duration). My name is _______ (name) and I work as __________ (designation).
I write this email to request you for granting me earned leave for ______ (number of days) days from __/__/____ (date) till __/__/_____ (date). The reason behind the same is ___________ (mention reason).
I shall be highly obliged for your kind support in this regard.
Sincerely,
____________ (Name),
____________ (Designation),
____________ (Employee ID)