[[IL]HeHu]

I have this kind of question, just for example a player writes some information in dialog ID 0.
for example here is the dialog:
"The ID you want to send the PM to"
and than the player writes 1 for example, so the ID is 1.
and i want to store this information inside some global var.
and than show the player the next dialog, for example:
"Now write the message itself"
The player should write the message, for example hello.
And than the following needs to happen:
Playerid 1 needs to recieve a message saying hello.
How can i store the number in the var, and than use it in the next dialog.
I hope everyone understood my question, and thanks