It's good to do favors for close friends.
Jenny is friends with Colleen and Colleen asks Jenny if she can pick her up at the airport.
Jenny wants to respond to Colleen's request.
Jenny tells Colleen that she can pick her up.
Jenny tells Colleen she should take a cab from the airport.
Colleen will think Jenny is a good and reliable friend.
Colleen will think Jenny is not a good friend.