Model 1: Saying No Politely

Dear Mr. Johnson,

I hope this message finds you well. I understand the importance of the new project deadline and the need for additional resources. However, due to my current workload, I am unable to take on extra tasks at this time. I am committed to maintaining the quality of my existing responsibilities, which require my full attention.

To support the team, I can prioritize the completion of my current project by the end of this week, allowing me to provide assistance thereafter. Please let me know if this would be helpful.

Thank you for your understanding.

Best regards, Max