Hello, Kai!
Welcome to planDisney with an excellent question. I am thrilled to help a fellow international Guest plan not only one but two magical stays at the Walt Disney World Resort!
After
purchasing theme park tickets, Guests are advised to
link them to their Disney account to start making
Disney Park Pass reservations for their visit dates. When you link park tickets to your account, you have to assign each ticket to each person in your travel party. If you are responsible for linking tickets to other Guests in your group, be sure to
add them to your Family & Friends list. If they have their own Disney account, I recommend
connecting your accounts via My Disney Experience so you can plan your visit together and include each other while making dining and Disney Park Pass reservations.
Once tickets have been assigned to each Guest in your party, you can start making Disney Park Pass reservations. Since you have more than one ticket linked to your account for different travel dates, My Disney Experience will identify the ticket that matches the dates of your first visit, and that ticket will be automatically linked to the theme park reservations made for that stay. I have reservations for this upcoming December and next summer, and I already have theme park admission linked to my Disney account for both visits. If your tickets have different start dates, upon entering the theme parks, the system will automatically redeem the valid ticket for the date you are visiting and verify if you have a Disney Park Pass reservation.
I hope this information is helpful, Kai! Come back to visit us if you have additional questions and have a magical visit to the Walt Disney World Resort!
Thiana