at Sheraton Atlanta Airport on 22 May 2017 – 26 May 2017

at Sheraton Gateway Suites O’Hare on 18 May 2015 – 22 May 2015

at Santa Clara Convention Center on 2 Nov 2010 – 4 Nov 2010

at Santa Clara Convention Center on 1 Nov 2010 – 4 Nov 2010

at Sheraton Gateway Suites O'Hare Hotel, Rosemont, IL on 18 May 2010 – 21 May 2010

at San Jose, CA on 19 Oct 2009 – 22 Oct 2009