This screenshot shows the Step 7 "Specify Network Configuration Details" of the Database Configuration Assistant wizard.
The listener selection table has no records. The "Create a new listener" checkbox is checked. The following fields are set:
Listener name: LISTENER
Listener port: 1521
Oracle home:/scratch/u01/app/oracle/product/18.0.0/dbhome_1
There are four active buttons: Help, Back, Next, and Cancel. The Next button is being clicked.