Is she trying to make it easier for me or is she going to flake out on me?

Asked by Theasiandude (15) September 8th, 2017 from iPhone

When I asked a girl to reschedule with me, because I’m not available anymore on the day we were gonna have our date. She says “I’m probably only available on Wednesday”, and then I asked her if she wanted to try to schedule for the 19th instead. Is she gonna flake out on me if I replied like that? Because I’ve been trying muster up the courage to ask her out, and she just replies with that.