I need a JSON developer

I have a sailing holiday travel agency, and I'm looking to integrate a function where visitors can search for their own sailing holidays. The platform is using JSON, and my website is on Squarespace.

My website is https://www.pristineyachting.com. However, the search function will be similar to on this page: https://www.latesail.com/en-eu/.

Is this something we can work on?