In appointment+ when you select a service it should automatically show service providers

In appointment+ when i select a service, i have to click 'show available times' and then it updates the service provides list.

Is there a way when i choose service, it automatically displays the service providers( show available times is completely redundant as it is being displayed again after you select service providers )

Pls see the site
http://www.mmsbahrain.com/1234/

Kindly advise
Thanks