Try this
- Refer to the particular action and the expectation it clarified.
- If other promises remain unresolved, choose a separate conversation for them rather than attaching a list of failures to this acknowledgment.
A worked example
“Thanks for confirming the booking when you said you would. I can plan the rest of Saturday now.”
An invented example to adapt, not a real exchange or a script you have to follow.
Before you leave it here
Avoid exaggerating the action into proof that everything has changed. The useful fact is that this agreement was completed.