Hi Megan!
Thanks for stopping by the Disney Parks Moms Panel with your question about dining with Cinderella. You do not need a special event ticket to eat at
Cinderella's Royal Table. As long as you have a theme park admission ticket to Magic Kingdom Park, you will be able to reach this magnificently themed restaurant. However, you will likely need a reservation to dine there. As you can imagine, Cinderella's Royal Table is incredibly popular among Walt Disney World Resort guests. You should call (407) WDW-DINE, or (407) 939-3463, right away if you are hoping to dine at this establishment during your upcoming visit in June. Be as flexible as possible with the time you are willing to dine in order to maximize the chance that a reservation will be available.
If a reservation at Cinderella's Royal Table is not currently available for the day of your visit, don't be discouraged. Call the aforementioned Disney Dining Line every so often to see if a reservation has opened up. Guests change their plans all the time so reservations may become available at a later date. And, if meeting Cinderella is at the top of your "to-do list," you can stop by
Princess Fairytale Hall to say "hello."
With regard to entering Magic Kingdom Park more than once in the same day, yes, that is permitted. Many guests with small children leave a theme park midday for a nap or a swim and then return to that same theme park later in the day. It's a great way to keep everyone happy and well-rested as you experience all that Walt Disney World Resort has to offer.
I'll keep my fingers crossed that you'll be able to dine with Cinderella and her friends in June.
Sending best wishes and pixie dust,
Jill