What was the speaker’s job?

My name is Betty Sanders. I’m a telephone operator, and I work for Universal Telephone Company. My job is an interesting one. I work five days a week, and my hours are from 9 o’clock to 5 o’clock, I do a lot of things—I place long-distance calls for people, I answer questions and I help people in emergencies.
    Today, for example, I had an interesting experience. At 11 o’clock this morning, I got a call from some man. I don’t know who he was. He was very nervous and I could tell that he was upset or frightened about something. He gave me his address and asked me to send air ambulance right away. I asked him if somebody was hurt, but he didn’t answer my question. He told me he needed a doctor right away, so I said I’d call an ambulance for him but still wanted to know what was wrong. Then he said, "Our keys are gone!" I didn’t understand that! Why would he need an ambulance just because he couldn’t find his keys! Then I found out what the trouble was.
    The man and his wife left the car keys on a coffee table, and later they couldn’t find them. Their little boy Johnny was playing in the room, and they thought he swallowed them.
    I told the man I’d get the ambulance right away, but before I could hang up, he told me he wouldn’t need an ambulance after all. His wife found the keys in her bag. They were there all the time. The little boy didn’t swallow the keys after all.