task 2 writing task

Dear Diary,
Today I went to the mall to buy some clothes with my Mom. Went I was just entering the mall, I slipped and fell to the ground. When I was getting up, I realized that there was a $50 dollar bill underneath my shoe. I was really surprised because this has never happended to me before.
To be honest I really wanted to take it to my house and put it in my savings, but my Mom told me that we had to return it to its owner. We asked a security guard if he could find the owner of this money, but he sad that we should find it because he was busy.
I arrived home and I looked at the bill and noticed that there was a phone number written on it. My Mom called that number and a kid answered. He sounded pretty sad. He was the owner of that bill, so my Mom gave him our address so he could come over and pick it up.