Originally Posted by
bulls011
so I was able to rebook it as a one way from Milan to Ewr on November 15th. I just paid an extra $1. Now when I cancel it it goes back to the original PNR. I guess unless there is a schedule change I won’t get a credit. :-( back to the drawing board. Thanks for your help
I think you misunderstood the suggestion.
You can't do what you're trying to do, because airfare doesn't work that way.
If you don't want to use the ticket for a TATL flight into the United States, you need to call United and ask them to reprice your already-flown flight as an EWR-DXB one-way. For a date with wide-open availability later this year, the round-trip price would be $981, but the one-way price is $723. As you can see, you often get a substantial discount from twice the one-way price when you book round-trip. In order to get residual credit that you can use on other flights, you flight have to let UA recompute the flight you took without that round-trip discount. It's likely, but not guaranteed, that you'll have some credit left over, although in rare cases a one-way may be more expensive than a round-trip.
There's nothing you can do by making changes to your existing reservation that's going to free up very much of that credit.