What would be the best way to find a date for a 17 y.o. girl going to a wedding on Sat. the 2nd of July?

Wedding is in Phoenix, Arizona 6pm. Guy must be cute, no, chubbies, no 420, no alcoholics, must have his own transportation. Just a guy to talk to, hang out. Wedding is business casual, so no suits required. Guys can't be older than 19, younger than 16. Boys in uniform go to the front of the line, will be interviewed by the groom.