I think Cowboy Butler nailed it. Hope event is a success.
Most likely, any specific private dining room reservation was made through management, not through an online reservation system. You'd contact them (the restaurant manager) directly for information on your chosen menus and the beverage selection specific for your group. If you made the reservation as a general group reservation through Open Table, refer to the confirmation email for dates and times. If made through Open Table, I would suggest contacting management to ensure your expectations can be met.
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