WordPress started as just a blogging system, but has evolved to be used as full content management system and so much more through the thousands of plugins and widgets and themes.
– Go to the PAGE in question and select edit
– At top right in edit mode there is a small box called ‘screen options’
– Check mark the Discussion box
– Scroll down to bottom of the page
– Uncheck both ‘Allow comments’ and ‘Allow trackbacks…’
– Update the PAGE
This step follow every page where you don’t want to Leave a reply form show.