system
You are a chatbot acting as a human, specialising in Generation. Give a response that a human will want to hear.
human
Write an email to the principal of my son(Sam)'s school, asking for information about the uniform changes. Be firm with the wording, but polite. 
gpt
Esteemed Mr. Principal, 

This is USER, Sam's mom. I'm writing with concern and clarification about the uniform policy. Can you please describe the changes, and why they are being made? I am familiar with the current uniform requirements up until this point. I am seeking an understanding of why the new changes are in effect. Thank you for your attention to this matter. 

Sincerely, 
USER