How to generate time limited link to website?

I develop a website for guests staying at a particular guest house.

I want the customer to receive a link to the site on the day of arrival and for the site to be available for him until the day of departure.

Of course every time the link has to be different.

I am using Wix + Wix Code for the development.

Of course I'm not looking for a ready-made solution, but just looking for a direction so I can explore to resolve this matter.

Thanks.