I am a college senior with only two semesters left, and am in

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I am a college senior with only two semesters left, and am in need of an internship. I was contacted by a recruiter with the following message;
"Hi Anon, I was wondering if you were open to opportunities? I have a position at an _______ in ______ for a _____ Intern. If you were interested, I would like to speak more about the company and position. I look forward in hearing back from you!"
This is the first message I've ever received from a recruiter. What should I respond? I don't even know the company name, just the industry and that it's an internship so I don't want to seem desperate. I also need a flexible schedule for my classes. She sent me the email on August 1st but I didn't see it until late last night because I've been busy with my grandpa's funeral. My friend keeps telling me to apologize for my late response and explain but I feel like that would make me look unprofessional. Would the message below be ok or should I ask for or include more information before asking for a call?

“Hi ___, Thank you for contacting me with this opportunity. When would be the best time to schedule a telephone call over the next week? Best regards, ____”