Hi @Jennifer-and-Jess0
Welcome to the community 😊
I have the same experience like you.
It isn't delightful. I didn't notice the guest is the second or third visit. And I didn't wish him
“Welcome back!”
I figure it out; after receiving the new reservation, I always through ‘ Reservation Detail’ to screen the guest.
Airbnb App > In box >Click on the Detail box at the right top page > wait for the download to view the guest reservations detail of the current reservation and the completed reservation.
Click on the reservation details to view the guest upcoming, current and complete booking in your listing inbox page
Happy Hosting ✌️