How do you set "Bookings with me" private meeting links that don't expire?

As a time-saver, I am a huge fan of templates. Copy/Paste/Send. Unfortunately, unlike the company Bookings page meeting links, the "Bookings with me" links expire, even when it is not a single-use link. 

How can I prevent link expiration? I can't find any documentation on this. 

Thanks.