[Ahrim]

try this

pawn Код:

CMD:tduty(playerid, params[])//Trucker-duty dialog
{
    new vehicleid = GetPlayerVehicleID(playerid);
    if(GetVehicleModel(vehicleid) == 403 && IsTrailerAttachedToVehicle(vehicleid))
    {
    ShowPlayerDialog(playerid, 2, DIALOG_STYLE_LIST, "Choose a route.", "Blueberry Packaging.\nMainstreet Ammunation.\nFlint Food Factory.\nOff-duty (Removes the CP)", "Confirm", "Close list");
    }
    else return SendClientMessage(playerid, 0xE64D51FF, "[*]Message: You need to be in a truck with a trailer to use this command!");
    return 1;
}