My friend already bought a ticket for raging waves but i need a girl to come with too!?!?

My friend is a boy and he bought his ticket online for raging waves. I told my parents who's going and i said a boy, his name is J___ P______. My parents freaked out and said NO NO NO NO NO. My dad told me later that i could invite a girl to come with but it was the night BEFORE we're going to raging waves. I asked EVERY single one of my friends to come with. All i care right now is my friends ticket and if one of my friends are available we're in. Now its morning the DAY we go to raging waves and i asked my dad if it could just be me and J____. he said NO. The main points are is we need to use his ticket and i need a girl so we can go to raging waves!!!!