I am planning a trip to Taipei in October and found a good fare with Starlux Airlines. While trying to book the ticket, the system keeps requesting passport information during the process.
The issue is that I have not received my passport yet, although it should arrive within about a month. At the same time, I want to secure the booking soon because prices are increasing.
I am wondering if there is any way to complete the reservation without entering passport details right now, or if it is possible to add that information later after receiving the passport.