A simple tour booking calendar for my website, grand-canyon-tours-1.com. For a perfect example, hit the "booking" button on dothecanyon.com.

I am looking for an experienced freelancer to create a simple tour booking calendar for my website: grand-canyon-tours-1.com. The calendar must have the features of date selection and availability tracking. The platform for implementing the calendar should be custom HTML and CSS. The site owner does not know javascript and does not know how to integrate the calendar to his site. He is unsure how to upload the calendar properly to his server. No specific design elements or aesthetics are necessary - basic functionality is enough. This project is time-sensitive, so please bear this in mind when applying. Thank you!