Sorry, I don't think this will work if you don't have a party ticket. I did a search for the same date and time, and it shows that regular dinner reservations are only through 6:30pm and the "special ticketed event" reservations start at 7pm. On the reservation confirmation page it also has the full warning, "You are making a reservation during an event which requires the purchase of a separately priced event admission ticket (e.g., Mickey’s Not-So-Scary Halloween Party). Guests with theme park admission must purchase the special event admission ticket to enter or remain in park during the special event. Note: The number of tickets available is limited for special events. Events may sell out early. Special event tickets are valid only during specific event dates and hours. Tickets are nontransferable and nonrefundable."