Dialogie repeat on click car object

Hello everyone,

Could someone help me with this:

I'm making an horror game.

Like every other game I would like an effect you click on object and a single dialogue comes.

I have an car as object:

I would like if you click with the 'E 'button you get dialogue: I cannot start my car. And you click the 'continue button. But it's repeatable. Only at the car, not the whole area.

 

store all the message in an array of string then you could use a switch statement to get the name of the object and pass the number to a function which gets the dialogue from the array and displays it in a textbox.
get the key input (E)
http://docs.unity3d.com/ScriptReference/Input.GetKeyDown.html

How to use text
http://unity3d.com/learn/tutorials/modules/beginner/ui/ui-text

Event manager to send the messages of what to display.
http://unity3d.com/learn/tutorials/modules/beginner/ui/ui-events-and-event-triggers

arrays
http://docs.unity3d.com/ScriptReference/Array.html

Switch statments
http://unity3d.com/learn/tutorials/modules/beginner/scripting/switch

you will need raycasts as well
http://docs.unity3d.com/ScriptReference/Physics.Raycast.html

 

Well,

I'm bad at scripting,
So I don't know how it al works, that's why I calling for help