My question is almost fully answered(AI help)

I asked before about my ai script I had and got improvements. Those improvements were fine for the time being, but now i want to move forward with my AI and this is preventing me from doing so. The answer I got when i first asked about having my ai randomly patrol was to use Vector3.MoveTowards, I was a little skeptical because I remember reading that this only moves in a straight line. But i used it and it worked a little bit. But now when my ai character gets to the point it wanted to go, it moves(thankfully it does not teleport) to a bunch of other points about 5 feet from the original point. How do I make my ai take some time when it gets to a destination, and then move like 30 feet from the new point it has reached. Help please

My script:

 using UnityEngine;
 using System.Collections;
 
 public class AIBehaviour : MonoBehaviour
 {
 
   
     public Transform player;
     bool PlayerSeen;
     float movespeed;
     float timer = 5;
     public int moveCount;
     public bool AImove;
     Animator anim;
     float AIhealth;
     Vector3 currentTransformedPos;
 
 
 
     // Use this for initialization
     void Start()
     {
         PlayerSeen = false;
         movespeed = .08f;
         moveCount = 0;
         AImove = false;
         anim = GetComponentInChildren<Animator>();
         AIhealth = 100;
 
     }
     // Update is called once per frame
     void Update()
     {
       
 
         timer -= Time.deltaTime;
 
         Vector3 direction = player.position - this.transform.position;
         float angle = Vector3.Angle(direction, this.transform.forward);
         float angleb = -Vector3.Angle(direction, this.transform.forward);
 
 
 
         if (PlayerSeen == false)
         {
             transform.LookAt(new Vector3(Random.Range(10, 30), 0, Random.Range(10, 30)));
             transform.position = Vector3.MoveTowards(transform.position, new Vector3(Random.Range(10,30), 0, 0), movespeed);
             moveCount = 1;
             currentTransformedPos = transform.position;
         }
 
         if (currentTransformedPos == transform.position && (PlayerSeen == false))
         {
             transform.LookAt(new Vector3(Random.Range(10, 30), 0, Random.Range(10, 30)));
             transform.position = Vector3.MoveTowards(transform.position, new Vector3(Random.Range(10, 30), 0, 0), movespeed);
             moveCount = 1;
             currentTransformedPos = transform.position;
         }
 
 
         //Player Position
         if (Vector3.Distance(player.position, this.transform.position) < 10 && angle < 30 || (Vector3.Distance(player.position, this.transform.position) < 4 && angleb < 0))
         {
             direction.y = 0;
 
             this.transform.rotation = Quaternion.Slerp(this.transform.rotation,
                                                         Quaternion.LookRotation(direction), 0.1f);
         }
 
 
         if (direction.magnitude > 5)
         {
             this.transform.Translate(0, 0, 0.3f);
         }
 
 
 
         if (Vector3.Distance(player.position, this.transform.position) < 10 && angle < 30 || (Vector3.Distance(player.position, this.transform.position) < 4 && angleb < 0))
         {
             PlayerSeen = true;
         }
 
 
         if (Vector3.Distance(player.position, this.transform.position) > 10 || (Vector3.Distance(player.position, this.transform.position) > 4))
         {
             PlayerSeen = false;
         }
 
         { 
             if (moveCount == 1)
             {
                 AImove = true;
             }
 
             if (moveCount == 0)
             {
                 AImove = false;
             }
 
         }
     }
 }