You can find your active bookings in the “Trips” section, which you can access via the navigation bar at the bottom of the screen.
FAQ
Sometimes the system may not recognize that you've returned the bike, even though you've parked it at a station. In that case, try parking the bike a few meters further down at the same station and try returning it again.
An active booking cannot be changed. If your start or destination address changes, simply cancel the existing trip and book a new one.