Dear Professor Smith,
I am exceedingly honored to hear the news that you ask me to plan the debate on the theme of city traffic. Here, I am writing this letter for the purpose of suggesting a specific topic and telling you about my arrangements.
In order to have students have an in-depth understanding of the causes of city traffic, I suggest that the topic could be “Lack of management” VS “Lack of facilities”, which can not only provide us with abundant knowledge about why the traffic problem is prevalent, but also equip us with the ability of thinking independently and critically. In addition, the debate could be hold from nine o’clock to twelve o’clock on next Friday in the Lecture Hall of our library.
If you have any other ideas about this debate and its arrangement, please contact me in your convenience. I am looking forward to your early reply.