Pending Appointments Front end

Is there a shortcode or way of confirming Pending Appointments from a front end webpage and not through the WordPress backend? I have setup a user page that will show the logged in users the following information on their custom page.

[app_my_appointments]

[app_monthly_schedule]

[app_pagination month=”1″]

[app_login]

[app_confirmation]

I would like the ability for each service provider to accept their own appointments. can this be done?