It is amazing that thranslation service can do a good job in translating, but I suggest that you try to write your own letter even though it may not be all correct because it is a learning experience. I did not read The Diary of Ann Frank, but I know about her and her life in the story in magazine and newspapers. I think it has been made into movie. Did you read the book?
Don't forget to write to me about my speech on September to the freshmen of Nation University. (I want to read how your computer tranlate this paragraph).
I leave this morning from Chiang Mai by Thai Inernational Airway flight TG 103 at 10:15 for Bangkok and connect to TG 692 for Los Angeles. I pack three books to read during the flights and iPad for work. It is a long journey of some twenty hours. ( How does your computer translate this paragraph too).
With all the best, (this one too),
Nirund