Hi @Emily-and-Scott0,
Did this guest stay through Airbnb or was it outside of Airbnb. If it was through Airbnb, you will receive an email a day after they check out where you can review the guest.
If you want to provide a reference for a guest, you can do this just the same way hosts can receive references. Airbnb has a help article on this which can be found here: https://www.airbnb.ca/help/article/173/how-do-references-work
I hope this answers your question and happy hosting.
Dave
David
Superhost Ambassador ~ Host Club Community Leader ~ Experienced Co-Host