@Cathy369 3rd party bookings are against Airbnb TOS. It can just be a matter of the guest not knowing this, but the person who booked has to be among the people who arrive to stay. Or worst case scenario, a guest has been banned from Airbnb, and gets someone else to book for them. So technically, you could refuse him entry. But as you say, he seems quite nice, so I'd just let him know that the next time he books an Airbnb, he needs to set up his own account, or add himself to his wife's account and then if she is booking for him, to let the host know that it is her husband who will be the guest.