Hi Julesy
You are right - you'll be in Las Vegas for three nights, from 20-22.
Any of those dates would be OK but if possible I would go for the 21 Sept. On 20 Sept you will have an included 'Vegas by night' tour and on 22 Sept the group will be having farewell drinks at the hotel. Of course, you are very welcome to skip those events to see your show but I thought you might like to know.
Kind regards,
Olly, your editor