Smooth Movement with set distance

So I want my character to move forward a set distance with a button press (this will be switched to a key press but I can manage that code switch) but right now, the character just kinda teleports instead of it being a smooth glide. I wasn’t sure if I needed to add Time.deltaTime for the smooth transition or not so this is what I have so far:

UPDATE 11/16: So I changed the formatting of the code to use Vector3.Lerp but I’m still not getting a smooth movement for some reason. I even tried to adjust the speed and nothing has really worked out yet.

using UnityEngine;
using System.Collections;

public class BattleMovement : MonoBehaviour {
	public Transform targetPos;
	public void MoveSquare () {

		var obj = GameObject.Find ("GameObject");
		targetPos = obj.transform;
		targetPos.transform.Translate (0, 0, 100);

		obj.transform.position = Vector3.Lerp(obj.transform.position, 
			targetPos.position, Time.deltaTime * 2);

Try using interpolation;

public float transitionSpeed = 2f;

public void MoveSquare ()
    float x = Input.GetAxis ("Horizontal") * 15.0f;
    float z = Input.GetAxis ("Vertical") * 50.0f;

    GameObject obj = GameObject.Find ("GameObject");
    obj.transform.position = Vector3.Lerp (obj.transform.position, new Vector3 (0, 0, z), Time.deltaTime * transitionSpeed);

Note You are using a mix of C# and JavaScript syntax, which isn’t a great idea generally speaking.