大家帮忙看看这个套磁回信-教授说不知道招不招人

Dear Mr. xxxx:
Yes, I remember that you wrote me. I am calling you Mr. instead of Ms.
because I assume you are male. Please confirm that I am correct.
When will you be available in case I have an opening? I don't know yet
when I will have an opening. However, sometimes, I need to make an
offer to a student immediately. So, it's good for me to know the time of
availability. Have you completed your application for admission to
xxxxxxx?
两个月前我和他联系过，当时没什么进展。这次我说，我申完了，说了一下我的情况。上面是他的回信，我之后主要应该怎么回复他呢？谢谢。