void main()
{
    if(GetCommandable(OBJECT_SELF))
    {
        // Standard response, but clear actions *after* the conversation starts.
        BeginConversation();
        ClearAllActions();

        // Sit in the assigned chair.
        string sChairTag = "RoyalSeat";
        object oChair = GetNearestObjectByTag(sChairTag);
        ActionSit(oChair);
    }
}