Hi, Cortney,
One of your fellow classmates slipped in just before your response, but I can’t tell you how thankful I am for your willingness to help. There might be some extra credit opportunities in the future and I’ll keep you in mind when they come up.
Thanks again,
T
Translation: You take too long to write E-mails and now you’re SOL on extra credit. But the good news is that you aren’t the only student who has no life and checks her universty E-mail at 10PM during semester break. Congratulations.