Professionally ignore people with style.

The timing of your email is spectacularly unfortunate for both of us. I am away from my desk while the conference ecosystem attempts to inspire me. Any request involving a discount, rush fee waiver, or vague miracle should wait. I plan to reply when I am back and marginally less annoyed. Urgent requests should arrive as one useful note, not a thread avalanche. I appreciate your understanding, especially if it arrived late.