Originally Posted by
eternaltransit
Also, the OP has not confirmed whether this was originally a one way ticket JFK-MXP-DXB or part of a longer itinerary. If it's a longer itinerary then everything onwards will be cancelled, including, presumably, the return MXP-JFK - and a penalty will likely have to be paid to make a rebooking.
The OP confirmed in post 7 that the MXP-DXB sector is the final sector in the booking