Changing flights with Alitalia is not a complicated thing. Alitalia Change Booking is here with you to make any kind of changes. Before going for changes, take your time and read change policy terms. The change request must be submitted one hour before the scheduled departure. No change fee will be applied if airlines will not able to make changes in the scheduled time.

https://airlinespolicy.com/flight-change-policy/alitalia-change-booking/