Need help with hot chick giving mixed signals

Met this chick on tinder (it's a small town hard to find matches), she invested a lot, I asked for a date to which she agreed however when I confirmed on D day she said she's busy and got family events. I let it slip by waited for few weeks (during which we stayed in touch with her initiating convo with a "someone's been busy") Few weeks later, we spoke on phone to which she brought up topic that a chick I had matched with on Bumble (from our town only) is her cousin. And obviously they both talked about me, and said how similar their choices were (is this a red flag?). I bantered a bit with a threesome joke. To which she said she only joined this app for timepass/making friends to talk to (which is weird cause she literally lives in an extended family) and wants nothing else. How do I make her a booty call, with all this BS she's putting up and rescheduling (It's a small town so dont wanna let this one slide)