Search results custom response

Hi,

I am looking for advice or a plugin that will customize the search results when using the search box.

If a visitor to the site searches for a term, I want a page that pops up saying ‘Yes it works with _____’ or ‘No it is not for _____’

I don’t want that page or the tags showing up in google, crawls or anywhere else on the site, ever. Only if someone specifically searches for that term.

An example would be a plant fertilizer – if the visitor searches for ‘daisies’ it would return a page saying ‘Yes it works with Daisies’

If they searched for ‘geraniums’ it would say ‘No, it does not work for Geraniums’

I know it could be done with a Yes page with the Yes tag words and a No page with the No tag words, but I don’t want those tag words in any pages at all.

Thanks for any advice or suggestions.