I am trying to book a flight on Sky Airline which is asking for my passport number in order to book the flight. Problem is that I do not have my passport yet, but https://passportstatus.state.gov states that I should receive it in about a week and states 'Your passport application locator number is XXXXXXXXX.'
The formatting of the number being 9 digits is the same as a passport number, so my question is, is that my actual passport number?