The title of the message should be:
I want to be in <The team you want to be in>.
Your description should explain why you should be in the team.
At the end of the description, put this piece of wikicoding
Should <your name> be part of the requested team?
I want to be in The News Team
I want to be in the news team because I come to this wiki often and I update outdated pages.
Voting will be based on the poll, so if you don't put that, you cannot be in this team.