Alert Message not showing in Laravel 5.4 - laravel

Question

I have got a contact form that is build using Laravel 5.4, parsley.js and Bootstrap 3, it works fine but it does not display a success message at the top of the form on successful delivery of a message or display any errors in case there is an error. Please assist?
Contoller
public function postIndex(Request $request){
$this->validate($request, array(
'name' => 'required|min:10',
'email' => 'required|email',
'message' => 'required|min:100'
));
$name = $request->name;
$data = array(
'name' => $request->name,
'email' => $request->email,
'bodymessage' => $request->message
);
Mail::send('emails.contact', $data, function($message) use ($data) {
$message->from($data['email']);
$message->to('info#kapsol.com');
});
Session::flash('success', 'Hello $name, Your Form was successfully sent');
return redirect()->route('pages.index');
}
Index.blade.php
<div class="col-sm-4">
{!! Form::open(array('route' => 'index.post', 'class' => 'contact-form', 'data-parsley-validate' => '')) !!}
<div id="success">
<div class="col-sm-12">
#if(Session::has('success'))
<div class="alert alert-success" role="alert">
<strong> Success: </strong> {{ Session::get('success') }}
</div>
#endif
#if(count($errors) > 0)
<div class="alert alert-danger" role="alert">
<strong> Errors: </strong>
<ul>
#foreach($errors->all() as $error)
<li> {{ $error }} </li>
#endforeach
</ul>
</div>
#endif
</div>
</div>
{{ Form::text('name', null, array( 'placeholder' => 'Name...', 'class' => 'input', 'required' => '', 'minlength' => '10'))}}
{{ Form::email('email', null, array('placeholder' => 'Email Address...','class' => 'input', 'required' => '', 'type' => 'email'))}}
{{ Form::textarea('message', null, array('placeholder' => 'Message...', 'class' => '', 'required' => 'input', 'minlength' => '100')) }}
{{ Form::submit('Submit') }}
{!! Form::close() !!}
</div>
Route
Route::get('/', 'PagesController#getIndex') ->name('pages.index');
Route::post('/', 'PagesController#postIndex') ->name('index.post');

Answer 1

You are redirecting to the same route your form is posting. I assume that the route that render the view is a GET route and have another name, you should redirect to that route or the route that renders index.blade.php

Answer 2

This is why you have the with() method to chain the route() method on. So rather than use Session:flash(), you can simply add a with() method that flashes that message to the session for the next request:
return redirect()->route('pages.index')->with('success', 'Hello'. $name.', Your Form was successfully sent');
Or rather if your form was originally from the index page, then you simply don't have to remember the name of the route, simply use back() helper method, i.e:
return back()->with('success', 'Hello'. $name.', Your Form was successfully sent');