YCMD:reply(playerid, params[],help)
{
    new text[128], string[128];
    if(sscanf(params, "s", text)) return SendClientMessage(playerid, COLOR_RED, "USAGE: /reply (message) - Enter your message");
    new pID = pInfo[playerid][Last];
    if(!IsPlayerConnected(pID)) return SendClientMessage(playerid, COLOR_RED, "Player is not connected.");
    if(pID == playerid) return SendClientMessage(playerid, COLOR_RED, "You cannot PM yourself.");
    format(string, sizeof(string), "%s (%d) is not accepting private messages at the moment.", PlayerName(pID), pID);
    if(pInfo[pID][NoPM] == 1) return SendClientMessage(playerid, COLOR_RED, string);
    format(string, sizeof(string), "PM to %s: %s", PlayerName(pID), text);
    SendClientMessage(playerid, COLOR_YELLOW, string);
    format(string, sizeof(string), "PM from %s: %s", PlayerName(playerid), text);
    SendClientMessage(pID, COLOR_YELLOW, string);
    pInfo[pID][Last] = playerid;
    return 1;
}

YCMD:r(playerid, params[], help)
{
    return Command_ReProcess(playerid, "/reply", 0);
}

// In OnGameModeInit (I guess):
Command_AddAltNamed("/reply", "/r");