"You don't have the ticket?"
Translation:¿No tienes el boleto?
¿Tú no tienes el boleto? The no has to go closer to the beginning of the verb.
If tiene, tienes mean the same thing. Why in the world does it matter which one you use, you get the same word out of it
It's the same difference between have and has. It is not the same word. It all depends on the subject