What does this girl's answer mean?

A few months ago I was talking to that girl, we had nice conversations, nice connection, and good vibe. I got the impression that she wanted me to ask her out, but instead of sayinf yes she said :" I will check my schduele and let you know...

It is behind me now... I never asked her about that anymore, but I wanted to ask you guys and girls, what did that mean?

Thank you all

What does this girl's answer mean?
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