Could you help me to respond this email in an appropriate and polite way?
I send an email to a professor and asked him about available PhD positions. He responded to my email as:
Unfortunately, I am not accepting any new students in preparation for my retirement.
With best wishes,
Now I'd like to respond to him in a polite way. I'd like to say that although I'm sad about that he can't accept me, I really appreciate his quick response.
Thank you for your helps in advance.