Hi Karen, welcome to planDisney!
Wow, it sounds like you have an amazing Disney trip coming up!
I'm so sorry that two of your party members weren't able to secure reservations for December 19, 2022. I just checked the
Theme Park Reservation Availability Calendar and I still see reservations available at
Disney California Adventure Park for Park Hopper Ticket Guests. Although not ideal, an option could be for the two remaining party members to purchase the Park Hopper tickets for Disney California Adventure Park, and "hop" over to
Disneyland Park after 1:00 p.m. I do want you to be aware that "hopping" between the parks is subject to park capacity limitations.
Another option is to wait and see if additional reservations open up at Disneyland Park, but that is not always guaranteed. And there is a chance the current reservations available for Disney California Adventure Park also get all booked.
I hope this helps, and if you have any follow-up questions, please do visit us again!
See ya real soon!
Jin