Looking for a plugin that allows users to search by word

Hi,

I am looking for a plugin that allows me to have a dropdown list and when the user selects, it changes the price and hyperlink of the button. An example is below, the ‘Select Your Dog Breed’ search and button.

https://www.perfect-paws-grooming.co.uk/services/

Any recommendations?

Thanks

The page I need help with: [log in to see the link]