Dialog Selection Questions (Tricky)

I am setting up a Colosseum simlar to Final Fantasy 3. The problem is, when I enter the Colosseum and talk to the Colosseum owner, I need Dialog buttons to pop up asking who you want to fight with, the 4 selections would be Rayne, Ariakas, Exion, and Arrera. Then after you select who you want to use, another screen would pop up asking who you would want to fight, around 10 selections. Then after the selecting is done I want it to spawn those two characters into the spawn arena. This trigger is beyond me, I have messed around with it a bit but I cant figure it out. Is there anyway someone could put up a tutorial map that shows this?

Get the stickied map by Mr.123. It has a dialog system that you could base your FF3 map off of. All you would have to do is copy his dialog stuff and then make the correct units spawn. It shouldn't be too hard.