How do I let a player choose which spawn they want to go to?

So basically, I want to have a GUI with three pictures of three spawns. Then when a player clicks on their desired spawn, that is where they go.

I'd also quite like the GUI to have a cut scene behind it, but that may be for another time. ^.^

ill make you a tele gui and you will put the position where the spawn is and then on the spawn it should say change team on touch

for your gui message me letsallgo