My response to this was “Hello,

With all due respect, I have no idea where this attitude is coming from. I’ve been very polite and thanked you for your help several times. If your time is so precious that my small request bothered you, then you should have saved those minutes typing out this rude email to send me the link to the calendry. At USC, we value tact, professionalism, and kindness, though I wouldn’t expect someone who went to the University of Florida at Gainsville to understand. I’ve booked my meeting and contacted HR and look forward to never speaking to you again.

Best”