@Danny--Matt--And-Clint0
Airbnb does not allow third party bookings. The person doing the booking must be one of those who will actually stay at your place. Since this gentleman doesn't intend to be traveling with his daughter, he is not permitted to do the booking. He could have her sign up and get an account and do the booking. If he wants this to be a "surprise present" , that will not work. Also, think to yourself about how well it is likely to work if you have a group of teenagers stay at your place, who did not choose your place and may not like it, who didn't read your house rules in advance and agree to follow them, and, perhaps most importantly, whom you never even communicated with.
The father says that five of these young people will be 18....how many are there and will the rest be under 18? Do you really want to rent to a group of teenagers whom you have never communicated with, some of whom may be minors? In so many ways this sounds like a situation to avoid.
Or, as some of the regular member hosts on the old groups would say, "A group of teenagers on a birthday party trip, 3000 miles away from home in a foreign country in Latin America, staying in the rented condo of someone they have never met and never communicated with...what could possibly go wrong???!"