Can anyone find me this flight for $919?

I am flying from DFW to Mendoza, Argentina and the professor who is going on the trip with us emailed us saying that she found airfare on AA.com for $919 on. The departing date is May 23, 2009 and the return date is July 7, 2009. I can't find it to save my life. If anyone finds it and sends me the link you get 10 points asap! Or if anyone can find me anything $1000 or under for these exact dates it would be greatly appreciated! Thanks!