MS Bookings : hyperlink

Hello, I am trying to add a notification via the confirmation email and where I would like to insert a hyperlink to the text.

But It seems like impossible to do it. In fact, I select the text and I click on "Insert link", then a window pops up showing the name box and the link box. But I can't fill in the box with the link.

Is there any solution for this issue ?

Thank you in advance.

Ilyes