private void handleRespondToNPC(PlayerCharacter pc, IncommingMessage msg)
        {
            if (pc.LoginState == PlayerCharacterLoginState.LoginSuccesfull)
            {
                RespondToNPCIncommingMessage msgRespondToNPC = (RespondToNPCIncommingMessage)msg;

                Entity en = getEntityByEntityID(msgRespondToNPC.TargetEntityID);

                if ((en != null) && (en is ServerCharacter))
                {
                    // Can talk only to server characters
                    pc.NPCConversationRespond((en as ServerCharacter), msgRespondToNPC.OptionID);
                }
            }
        }