[solved]Need help instancing prefab objects

i have a little plane object that flies from city a to city b and back to a. i have it set up so a gui.window opens when you click the plane object and it should show the Starting City and the Destination City in the window, which this does work. but the problem is when i have more than one plane object even if they are going to and from diffrent cities the Gui.window will show all the origin cities and all the destination cities for all the plane objects. so i need to figure out how to make the plane objects independent of each other so they hold their own information that im working with.

the plane model object is a prefab with a plane mesh, the plane texture, with a cube collider mesh and a rigidbody as well as the script im posting here attached to it.

i create the plane object to the scene with:

GameObject mapplanemodel = Instantiate(Resources.Load("MapPlaneModel"))as GameObject;

then the RouteModel script takes over and starts the plane object flying from a-b-a-b and so forth.

this is the script for the planemodel.

 using UnityEngine;
 using System.Collections;
 
 public class RouteModel : MonoBehaviour 
 {
     GameObject aorigin;
     GameObject bdestination;
     GameObject route;
     Routes aroute;
     public bool flight;
     bool guiplaneroute;
     RaycastHit hit;
 
     // Use this for initialization
     void Start () 
     {
         route = GameObject.Find("Route");
         aroute = route.GetComponent<Routes>();
         aorigin = aroute.origin;
         bdestination = aroute.destination;
 
         flight = true;
         guiplaneroute = false;
 
     }
 
     void OnCollisionEnter(Collision other)
     {
         Debug.Log ("we hit outside city: " + gameObject.name);
         print("This collider collided with: " + other.contacts[0].otherCollider.name);
 
         if (other.contacts[0].otherCollider.name == aorigin.name) 
         {
             Debug.Log ("we hit city: " +  other.contacts[0].otherCollider.name);
             flight = true;
             
         } else
             flight = false;
 
     }
 
     // Update is called once per frame+
     void Update () 
     {
 
         float speed = 100;
         float step = speed * Time.deltaTime;
         if(flight == true)
         {
         transform.LookAt(bdestination.transform.position);
         transform.position = Vector3.MoveTowards(transform.position, bdestination.transform.position, step);
 
         }
         else if(flight == false)
         {
             transform.LookAt(aorigin.transform.position);
             transform.position = Vector3.MoveTowards(transform.position, aorigin.transform.position, step);
 
         }
 
         Ray ray = Camera.main.ScreenPointToRay (Input.mousePosition);
 
         if (Input.GetMouseButtonDown (0)) 
             {
             if (Physics.Raycast (ray, out hit)  && hit.collider.tag == "MapPlaneModel") 
                 {
                 guiplaneroute = true;
                 }
             }
 
         if (Input.GetMouseButtonDown (1))
             {
             guiplaneroute = false;
         }
 
     }
 
     void OnGUI() 
     {
         if(guiplaneroute == true)
         {
             //0,0 is top left corner of box, 100,100 is the size of the box
             GUI.Box (new Rect (Screen.width / 3, Screen.height / 3, 200, 250), "Flight Route Info");
             GUI.Label (new Rect (360, 570, 65, 25 ), ""+ this.aorigin.name);
             GUI.Label (new Rect (420, 570, 40, 25 ), ""+ this.bdestination.name);
         }
         
     }
 }