Dear Ms. Nessa

Good afternoon.
I am your new student. My name is Sungyong Kim. Please call me Mr. Yong.
I set the alam at 7:10 PM this morning. But I forgot my class because of first class and setting time.
I will set alam closer to class time(7:20PM) or set alam a couple of time again.
What should I call you? Ms. Nessa, right?
I'm looking forward to see you tomorrow.

Hi, Mr.yong. It's okay.don't worry about it. I am excited to have classwith you. See you. :)