Dear Dad,
I hope this letter finds you in good health. I am writing to you to ask if you would be able to help me celebrate my upcoming birthday. I would love to have a special day with family and friends, and I would be so grateful if you could help me make it happen.
I know that planning a party can be a lot of work, so I am willing to help in any way I can. I am also open to any ideas you may have for the celebration.
Thank you for considering my request. I look forward to hearing from you soon.
Sincerely,
[Your Name]