How can I list all event categories in event page?

Hi Thanks for this plugin. But I’m facing an issue with event category listing. I need to list out all event categories in combo box under Event page using,

wp_dropdown_categories( $args );

Could you please give me a code to list out all event categories in a drop-down list using wp_dropdown_categories( $args );

Which looks like,

if(is_category(5)){

$select = wp_dropdown_categories('show_option_none=Select category&show_count=0&orderby=name&echo=0&child_of=5&depth=1&hide_if_empty= false');

}

Please help me if anyone knows.
Thanks!

https://www.ads-software.com/plugins/the-events-calendar/