Mr GrimesIs that you, John?
John SmithYes, speaking.
Mr GrimesTell Mary we shall be late for dinner this evening.
John SmithI'm afraid I don't understand.
Mr GrimesHasn't Mary told you? She invited Betty and me to dinner this evening. I said I would be at your house at six o'clock, but the boss wants me to do some extra work. I'll have to stay at the office. I don't know when I shall finish. Oh, and by the way, my wife wants to know if Mary needs any help.
John SmithI don't know what you're talking about.
Mr GrimesThat is John Smith, isn't it?
John SmithYes, I'm John Smith.
Mr GrimesYou are John Smith, the engineer, aren't you?
John SmithThat's right.
Mr GrimesYou work for the Overseas Engineering Company, don't you?
John SmithNo, I don't. I'm John Smith the telephone engineer and I'm repairing your telephone line.