Answer:
Subject: Help Me Plan a Surprise Party
Dear [Friend],
I'm planning a surprise party for my family and need your help. It's been a while since we've been able to celebrate something special together, so I thought this would be a great way to show my appreciation for them.
I'm thinking of having it at a nearby park, with a picnic dinner, decorations, and a few fun activities. I need you to help me with the details, like picking up supplies, cooking food, and sending out invitations.
I know it will take a lot of work, but I'm sure it will be worth it when I see the look on their faces. Please let me know if you're available to help.
Thanks,
[Your Name]