How do I answer someone to go to a dance?

So this girl gave me a baseball bat that said "We would have a slammin' time..." and a mitt that said "If you were caught at the Luau dance with me!" to ask me to the dance we're having in a couple weeks and I wanted to know if anyone had any clever ways to answer her. It's kind of urgent since I'm really shy and I'm freaking out a little about what to do.