Lead with the date
He wants one thing and it is a date. Everything you say before it, the context, the dependency, the reason, is heard as delay, however true it is.
So the date goes first, even if the date is bad. A bad date delivered in the first thirty seconds is a conversation about a plan. The same date at minute six is a conversation about whether you were hiding it.
Never say end of quarter
Any answer that is not a specific day reads as a second evasion, and that is the moment an angry call becomes an escalated one.
If you do not have a day, say what you will have and when: I will have a date for you by Thursday, and I will call you rather than email. That is a commitment, it is checkable, and it does the same work.
Being talked over
He interrupts. Raising your voice to finish your sentence is read as not listening and it escalates; stopping, letting him finish, then answering the question he actually asked is what brings it down.
This is genuinely hard on a phone in a second language, because the cues you would normally use to find the gap are gone. Derek Mahoney is phone-only for exactly that reason.
One action, today, with your name on it
Not an apology. Apologies are free and he knows it. One concrete thing you will do before the call ends, owned by you, is what changes the temperature.
The rubric weights de-escalation and next steps most heavily, and the transcript will show you the exact minute the call turned, in both directions.
