Okay, a little lesson there. In French, when you speak to an adult or someone you respect much, you use the "vous". When it's a young person, or someone you know well, you use the "tu". English doesn't make the difference, it's "you" anyway. In the case of Laurent, that is young and in a school, he would better say :
"Veux tu..."
"Voulez vous..." is fully correct. It just has to be used when talking to a prefect, a teacher, or any adult... Get it ?
