The correct answer to this open question is the following.
Unfortunately, you forgot to include the audio or the link to it. Without that information, it's difficult to know what you are talking about.
However, doing some research in order to help you, we can comment on the following.
In the conversation held by Hernán. The list of the tasks Hernán has already done in preparation for his trip is the following.
We assume you need the list in Spanish.
-Hernán compró su boleto para salir de viaje.
-Hernán tuvo que buscar su pasaporte.
-Después de encontrarlo, Hernán tuvo que preparar sus maletas de veiaje.
-A final de cuentas, Hernán decidió no llevarse su mochila.
-Hernán sabe que debe confirmar su reservación de viaje y procede a realizarla.
-Finalmente, Hernán quiere conocer más sobre la Isla de Cuba y decide leer un libro sobre ese país.
