Hello, Susana!
Welcome back to planDisney, and thanks for reaching out to our team!
Since you're visiting tomorrow and your son doesn't have a ticket, we'll have to move fast. If both theme parks are sold out, the ticket booths won't be able to sell you a ticket and make a reservation for you. So your best option is to
buy a ticket online if you see availability on this online calendar. If park reservations are sold out for your dates, don't give up!
The Disneyland Resort usually holds a separate park reservation inventory for Guests staying at the
Disneyland Resort hotels. So the best option to secure a last-minute park reservation is to
confirm availability for Disney Hotel Guests on this calendar, book a room at a Disneyland Resort hotel for your son, and link the reservation to his Disneyland account. Then you will
buy your son's tickets to secure a park reservation for him. This should do the trick!
I hope this strategy works for you and your family, Susana. Our planDisney family will be crossing our fingers for you!
May the magic be with you,
Julie