shasha, thank you for the previous correction :)

It changes very smoothly!

Here is my another essay, plz check out and change perferctly :)

-Discribe your experience that you've met unpleasant customers with demanding requirement.

Everyone of us ,especially those who are  working in the service field has a lot of experience in  meeting an  unpleasant and demanding customers. I also had many experiences about that and I'd like to share it. 

I used to work in a Travelling  Agency.  One day, there was a customer who asked me to make  their own itinerary. So i was in charge of it.  When i was almost done setting up their schedule, he wanted to add some places which was visiting in a dark spot for men. I was really shock because he told me it is a business trip for their team. I couldn't  accept it. I know that i need to comply because it was my job and i had to do it for my promotion. If i will agree with it, I believe that it could ruin my company's reputation in the future. I did not give up what i believe in. In addition, it was illegal  in Korea.
So I reported it to my boss and i dropped  it.  Fortunatley, my boss accepted it immediately.  After that, i told my costumer that i won't do their itinerary for legal reasons.
But he still wanted me to keep their deal because of my kindness and it was a reasonable price.

I learned that good service is very important and powerful  because it could make up their desicion and reached their satisfaction even though I rejected their requirement at first.

Thank you for reading.