At the bottom of the dispatch grid there is a large box that can be used to show the vehicle amenities of the assigned vehicle for the selected trip, or it can show you a summary of the trip selected.
If you select Reservation Summary, you can control (by user) what information appears in the summary, and in what order. Simply click on the gear icon.
Uncheck whatever you don’t want to appear; to change the order, select the line you want to move and use the arrow buttons on the right of the window to move your selection up or down.
Then the window will show the summary the way you want it, for whatever trip is selected in the Dispatch Grid.