at Sheraton Premiere on 16 Nov 2015 – 20 Nov 2015

at Sheraton Tyson's Corner on 10 Nov 2014 – 14 Nov 2014

at Sheraton Gateway Suites O’Hare on 19 May 2014 – 23 May 2014

at Sheraton Gateway Suites O’Hare on 14 May 2013 – 17 May 2013

at Sheraton Gateway Suites O’Hare on 22 May 2012 – 25 May 2012