Respected Sir/Madam,
I would like to most humbly inform you that I am working in ______ (department) department of your reputed company as a _________ (mention designation).
This email is in reference to the project that I was allocated. Please note that the project assigned to me will be finished within _______ (number of days) and thus I hereby request you to kindly allocate another project in my name so that I could proceed further with the same. I shall be obliged if you could respond in this regard at the earliest.
I look forward to your quick response in this regard.
Thanking you,
___________ (Your name),
___________ (Designation),
___________ (Employee ID Number)