Phoenix

I'm looking for a hookup for 1 ticket to the 5/18 show. I'm flying back from Vegas (Sisters wedding) just to see the show but it sold out before I got off my lazy ass and got tickets. I've got a ticket to the 5/19 show but I want to go to both! My last stop will be the scalpers, but I'd rather trade for 2 (or 1) for the Sunday show. I'd rather see my money go to the band. Thanks in advance for the help