[Jstylezzz]

pawn Код:

//this before the Kick(giveplayerid);, make sure to delete the Kick(giveplayerid)!
new string[128];
format(string,128,"You have been kicked.\nReason: %s",reason);
ShowPlayerDialog(giveplayerid,9999,DIALOG_STYLE_MSGBOX,"Notice",string,"Dismiss","");
SetTimerEx("DelayKick",1200,0,"i",giveplayerid);//delay the kick by 1 second 200


//outside any callback, at the total bottom or your mode for example
forward DelayKick(playerid);
public DelayKick(playerid)
{
Kick(playerid); //kicks the playerid
}

Updated with Rajat_Pawar's suggestion.
Read the comments I wrote with the code.