Events manager - child theme not working

I am trying to make changes to plugins/events-manager/templates/forms/event/bookings.php via my child theme. When I make changes to the file directly in the plugin, it works well, but I know the way to go is to make changes at the child theme level so this is what i have done:

I added the edited bookings.php to twentytwelve-child/plugins/events-manager/templates/forms/event/bookings.php but for some reasons the changes are not applied.

I have also tried to add the edited bookings.php to twentytwelve-child/events-manager/templates/forms/event/bookings.php but it is not working either.

I would appreciate if someone could help me figure this out (screenshots below). FYI - I am not a developer, so please try not to be too technical in your answers.

Many thanks, Yvan Child theme directories

via Chebli Mohamed