The context of the following conversation is After accidentally wandering into a strange neighborhood, Alex got lost on the way home.:
Alex says I was just following the map.  I must have taken a wrong turn.  I got lost on the way home..
The friend responds Well, you found your way home eventually, right?.
Alex responds I did.  I had to call my sister and asked her to pick me up.  I gave her the address of the house I was standing in front of..
The friend responds Good thing she bailed you out..
Alex responds She's a good sister.  I can always depend on her..
The friend responds That's great to have someone you can trust like that..