What are the plot and climax of the story?

A man and woman
(Jig) are waiting at a train station in Zaragoza, Spain.  We can surmise that they are headed
for Madrid from the text.  They drink beer and an Anis drink.  They note that the hills in the
distance resemble white elephants.

The man begins to urge the woman to have
an operation.  She tries to avoid the conversation by talking about the flavor of the drink, but
the man is not amused.  The woman states that she...