Write the beginning of an email to an employee. They are not handling their responsibilities as the front desk assistant very well, and I want to inquire to see if I can help them, but also let them know their work has not been satisfactory. The employee's name is Susan. My name is Mallory. Try to set up a meeting for Thursday afternoon at 2:30.
Hi Susan, 

I'm reaching out because I believe your performance might benefit from some increased training. I've noticed recently that some tasks assigned to you may be beyond your current comfort level or ability. I would be happy to assist you in getting familiar with our SOPs and best practices so that you can achieve your potential with us. Let's start by chatting so we can come up with a plan for how we want to approach things as we move forward. I'm open Thursday afternoon at 2:30. Does that work for you?

Thank you,
Mallory