Passing Argument to Lumen Job - php

Question

I am building an app in Lumen that sends text messages with Twilio. I am in the process of creating the Job that actually handles the sending of the message. I dispatch the Job directly from the routes file. Eventually, the "To" phone number will be entered in a form so I'm having it passed into the job as an argument.
Here is my Job class:
<?php
namespace App\Jobs;
class FiveMessageJob extends Job
{
protected $number;
/**
* Create a new job instance.
*
* #return void
*/
public function __construct($number)
{
$this->number = $number;
}
/**
* Execute the job.
*
* #return void
*/
public function handle()
{
//dd($this->number);
// this line loads the library
require base_path('twilio-php-master/Services/Twilio.php');
$account_sid = 'xxxxxxxxxxxx';
$auth_token = 'xxxxxxxxxxxx';
$client = new \Services_Twilio($account_sid, $auth_token);
$client->account->messages->create(array(
'To' => $this->number,
'From' => "xxxxxxxxxxx",
'Body' => "What's up Stackoverflow?"
));
}
}
Here is the route that dispatches the job:
$app->get('/', function () use ($app) {
$number = "[phone]";
dispatch(new \App\Jobs\FiveMessageJob($number));
return view('index');
});
I am getting the Twilio error: A 'To' phone number is required.
When I dd($this->number) inside of the handle function, it returns null.
Obviously the $number argument isn't being passed through. I'm sure I'm missing something obvious so I could use a second set of eyes and any help y'all can offer.
Thanks.