Try this
- Confirm the actual capacity limit without asking for a defense of it.
- Compare moving the deadline, doing the errand yourself, reducing the task or using an appropriate alternative. Do not mark it transferred without another person’s acceptance.
A worked example
“You cannot do it today. I’ll move it or find another option.”
An invented example to adapt, not a real exchange or a script you have to follow.
Before you leave it here
Keep the practical problem separate from an argument about willingness.