Given the question "How long did the man travel after leaving the post office?" and the answer "About half an hour.", write a conversation that might have happened.


W: Why are you so late? We've been waiting almost an hour and a half.

M: I'm terribly sorry. Just as I was leaving, Mr Smith asked me to send a telegram for him. The post office was crowded and I was in line for an hour. Then I raced straight here.