Plz hlp me to make indirect

He said, " Who can teach me to write a covering letter?"
She said, " I have written a lot of them, so I can teach you."
He said, " Are there a lot of rules?"
She said, "Even something like writting a covering letters has a lot of ruls?"
She said "Often people write these letters in any way they want."

Dear Student,
Here's the answer to your query - 

1. He asked who could teach him to write a covering letter.
2. She replied that she had written a lot of those, so she could teach him.
3. He asked whether there were a lot of rules.
4. She asked whether something like writing covering letters had a lot of rules.
5. She said that people often write those letters in any way they want.
  Regards