plane tickets to Argentina
In the film, she shows up at the airport ready to board the plane. The cops find out that Beck has bought a ticket, and under an alias, hers is right next to his, so they are looking for them both.
Maybe I was sleeping, but I saw no setup for any of this, including how they set it up with each other. Then later, we see that he has received no new emails from her, since seeing her in the park (and he obviously doesn't go to the airport). What am I missing?