How to create session using cvent API

[amit4mins]

HI,

I was trying to add new session to an event on cvent using API.
I used CreateSession call to create a new session under an event but its not working till now.
I dont know what wrong i am doing. I am pasting my code here:

      $sessionData = (object) array(
                'EventID'   =>  'MY EVENT CODE',
                'Session'   =>array(
                     array(
                         'ProductName' => "API test session",
                         'ProductType' => 'Session',
                         'StartTime' => '01/22/2016 6:00 PM',
                         'EndTime' => '01/25/2016 6:00 PM',
                         'ProductDescription' => 'Test Description'
                )
    ));
    $response = $this->client->CreateSession($sessionData);
    print_r($response);
    die;

Its not giving me any error.
If there is any mistake is this code please let me know. Your any help will be appreciated.

Many Thanks,
Amit Kumar