What if? Cancel trip in the middle
Hypothetically, what will the following situation yield?
A person is booked on multi city itinerary:
1. ZRH-IAD on 10/1
2. DCA-EWR on 10/2 (22 hours later)
3. EWR-ZRH on 11/3
Upon arriving to IAD, call United and cancel the remaining of the trip. Will it be possible to rebook the same route (plus change fees) later on or not?