I just made the test booking on that page of your website, and in my case it is works.
Please clear all minified CSS and JavaScript files, as well as any cached pages or posts. Additionally, ensure that you clear your browser cache before testing the site again.
Thank you very much for your prompt reply. Trying it with private pages actually works. I have deleted everything and hope to resolve the issue on my browser in the near future. Thank you very much, I am glad it was not a big problem.