I had a flight booked with Alitalia from LA to Rome for August 1st. I tried checking in 24 hours before flight on the app and I kept getting flight not found message. I decided to call them and they told me there was no flight and to contact Delta since I made the purchase through them. I waited on hold for almost 2 hours, and Delta verified that the flight was cancelled by Alitalia. Luckily they were able to book us on a different flight. I never received any notification or email regarding the cancellation. Luckily I called them before heading to the airport.