@Leonardo538 Was this an Instant Booking? Do you see on your account that the reservation was charged, but you didn't get a confirmation? If you just sent a booking request, the host may not have accepted or declined it yet.
As @Luana130 says, you should beef up your profile. Very few hosts will accept a reservation from someone who hasn't bothered to write anything about themselves on their profile, has no reviews, no verified ID and no phone number attached to their account.