Approached a girl and got her number and idk how to setup date. The context is relevant

Some context: This girl, Jenna, is in a organization and I'm in the male version of her organization. We both went to an event last weekend and I was leading everyone at that event. So much social proof (and like you guys said, girls like leaders). She's checking me out the whole time, but I pussied out and never approached her at the event.

Now Jenna's organization is hosting an event 3 weeks from now, and she's selling tickets. So today I see her at school in the halls, call her out. Ask if she's selling tickets, she says yes, and then I ask for her number and say I'll text you for the tickets.

QUESTION: How to escalate or text this chick for a date?

I was thinking of something like "I actually don't want tickets. I just think you're cute. We should hang out."

Oh and btw she doesn't drive yet, so I would have to pick her up or parents drop her off.