Meaning of this sentence

• "Kind of..." is an informal way to say "partially," "somewhat," or "to a certain extent." It suggests that the answer isn't a full "yes" or "no."
• "My schedule is unpredictable" means that their plans or availability change often and cannot be easily known in advance.

So, the speaker is saying that while there might be some truth to what was asked, their plans are too uncertain to give a definite answer.