Add custom button List-View

I would like to add a button that will lock an item on List View, some kind of reservation process, and my idea goes like this:

1. Next to "Inline Edit" add this button "Reserved"
   
2. When "Reserved" is pressed that row or item Status change to "Reserved" and the whole information for that truck locks in.
   
3. A Pin number generates automatically to the Administrator.
   
4. To remove this truck from the system, the customer has to provide the pin number.
   
5. After that verification goes ok, the Status on that truck changes to Active and then it can be eliminate from the system.
   This is my first approach to a reservation process, if somebody else has any idea please share it with me, i'll apreciate any feedback
   Thanks!!!