Dear
This is in reference to letter received from your end regarding change in time of meeting. After a pursuant to your request, we have changed your meeting with (name of the individual) to (time), on (date)
We are very pleased to be able to accommodate you in this regard, and (name of the individual) will be looking forward to your meeting on this newly appointed date. I hope you would now comfortable with this new date and time as per your requirement. Hope to see you with all the preparations.
Acknowledgement of Change in Meeting Date