Ask HN: How do you convice a startup to bet on you?

Hi, So, I am a college student and I was looking for a cool start up to join. I recently got rejected down by my dream YC start up because they wanted college graduates with start up experience and they would find right candidate given some time. How do I convince them that I am the best bet? I am super passionate about their product but I don't have the start up experience. I have had two internships at big corporation and a small academic institution.

Please advise. thank you.

PS: Yes, this is a throwaway account.