I'll keep it short

Matched with a girl from class on tinder. I heard from a friend she thinks I'm cute. I asked her to go out Sunday and she said yes. Saturday comes along I ask her "pick you up at 4 tomorrow?" And she says she can't because she's actually working that day. (Which she actually is)

She asked ME for my Snapchat on tinder, but has never texted or messaged me first. Also when I text her she doesn't really put in effort to keep the convo going. Wat do?