I once had a supervisor who wrote a note on the breakroom refrigerator door that stated: "People, please date your food." One of the gals wrote underneath: "Why, what's wrong with dating men?"
I was curious the OP's need to state that this was not a food question.
Edited to add that if you could have changed the date manually I don't know why you needed to email the scheduler at all. At this point, if you are allowed to change the date yourself, I would do so and then email the scheduler a followup informing them that you changed it yourself.
Edited 1 time(s). Last edit at 05/02/2017 02:10PM by JASFLALMT.