If you want to add the link that will direct your Instagram audience to the Hostme guest page, you can do that here:
Go to Admin panel -> Online tools -> Public page -> Instagram version.
Click on the arrow (as shown on the screenshot).
Here you will find the link that you should copy.
Go to your Instagram page:
Click on "Settings".
Go to "Edit profile".
Paste the link where it says "Website".
After that, you will be able to see the link on your profile (as shown in the
Your customers will be able to click on this link and make a reservation in
just a few minutes.