Move Object to location of Trigger?

The best way to do this kind of thing is through a CoRoutine (IEnumerator) So basically the way it works is until its a certain distance from the target (which is a very small amount) then it will move towards it and when it reaches there it will stop and set the target to nothing. If say you were to click on a different target... It stops call coroutines and then starts the coroutine again. Ensuring that there aren't two scripts fighting to do the same thing.

     [SerializeField] float speed = 1;
     // generally identifying things by their name sucks!!
     // if you change the name of the object then it no longer works.
     // i think it would be best if you have all of these triggers on a Layer
     // and if you click on something of that layer then what you click becomes
     // becomes the target... but anyways...
     [SerializeField] string triggerName = "Trigger";
 
     GameObject target;
     float stoppingDistance = 0.001f;
 
 
     void Update() 
     {
         if (Input.GetMouseButtonDown (0))
         {
             SetTarget();
         }
 
         MoveToTargetPosition();
     }
 
     void SetTarget()
     {
         RaycastHit hit;
         Ray ray = Camera.main.ScreenPointToRay(Input.mousePosition);
         if (Physics.Raycast(ray, out hit))
         {
             if(hit.collider.name == triggerName)
             {
                 target = hit.collider.gameObject;
 
                 // stop any existing coroutine that is running
                 // this way there won't be two running at the same time.
                 StopAllCoroutines();
                 StartCoroutine(MoveToTargetPosition());
             }
         }
     }
 
 
     IEnumerator MoveToTargetPosition ()
     {
         //while the target exists...
         while (target != null)
         {
             transform.position = Vector3.MoveTowards (
                 transform.position,
                 target.transform.position,
                 speed * Time.deltaTime
             );
 
             // wait a frame
             yield return new WaitForEndOfFrame();
 
             // calculate the distance between the objects
             // if its close enough then stop the process.
             float distanceToTarget = Mathf.Abs(Vector3.Distance(transform.position, target.transform.position));
             if (distanceToTarget <= stoppingDistance) {
                 target = null;
                 yield break;
             }
         }
     }