Redirect appointments to URL based on provider

Need to figure out how to redirect depending on provider. Each provider will have their own thank you page.

The code below works fine for one thank you page.

function app_redirect( $script ){
    return str_replace("window.location.href=app_location()", "window.location.href='http://URL/'", $script);
add_filter( 'app_footer_scripts', 'app_redirect' );

Can someone provide code with 2 or more filters based on provider ID?

Thank you