Npc Chat script

public boolean useBypass(String command, L2PcInstance player, L2Character target)
{
    if(player.getInventory().getItemByItemId(1700) != null)
    {
        try
        {
            target = (L2Npc) player.getTarget();
            //Send the first packet normally
            target.broadcastPacket(new CreatureSay(target.getObjectId(), Say2.ALL, target.getName(),"Hello"));

            //Schedule the next CreatureSay after 5 secs
            ThreadPoolManager.getInstance().scheduleGeneral(new NpcTalk(new CreatureSay(target.getObjectId(), Say2.ALL, target.getName(),"I said... Hello!!!"), target), 5000);

            return true;

        }
        catch (Exception e)
        {
            _log.warning("error: " + e);
            return false;
        }
    }

}

//Runnable class that implements what you need
private class NpcTalk implements Runnable
{
    private L2Character _target;

    public NpcTalk(CreatureSay cs, L2Character target)
    {
        _packet = cs;
        _target = target;
    }

    @Override
    public void run()
    {
        _target.broadcastPacket(new CreatureSay(_target.getObjectId(), Say2.ALL, _target.getName(),"Hello"));
    }

}

public String[] getBypassList()
{
    return COMMANDS;
}