Make object go to point a to b on click

I want my cube to move to a other position when i click the mouse button. I know how to script, but i just cant figure out how to do it like this.
How do i achieve this?

Thats quite Simple

Here is an example

public GameObject Object;
public float speed;
public Vector3 DestinationPoint;

bool cango = false;
void Update()
{
 if(Input.GetButtonDown("Fire1"))
  {
   cango = true;
  }

 if((transform.position - DestinationPoint).sqrMagnitude < 2f)
  {
   cango = false;
  }else{
//Assuming your Starting point is the object's position
    if(cango)
      {
      transform.position = Vector3.Lerp(transform.position,DestinationPoint,Time.deltaTime * speed);
       }
   
   }


}