1--Hello, Mr. Smith, I am returning to Shanghai by the 10:00 plane. I am calling to thank you for all your help during my stay here.
2--Don't mention it. It's been my pleasure.
1--Next time you are in Shanghai, please let me know, and let me be of some assistance to you.
2--OK. I will.
1--Have a nice flight back, and take care. Thanks for your call.
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注解：
1.during my stay在我逗留期间
2.assistance帮助
3.flight飞行
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译文：
1--你好，史密斯先生。我将乘10点的飞机返回上海。我打电话来是向你道谢的，承蒙在我逗留期间对我的招待和帮助。
2--不用客气。这是我的荣幸。
1--下一次你去上海的时候，请通知我一声，让我给你提供点方便。
2--好，我会的。
1--祝你返航一路平安。多保重。谢谢你的来电。
