at Sheraton Premiere on 16 Nov 2015 – 20 Nov 2015

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

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

at Sheraton Gateway Suites O’Hare on 24 May 2011 – 27 May 2011