He said, "I am unwell"

Please say what is the repoted speech?

Chalk said, " I am a writer"

Please say what is the repoted speech?

Please explain clearly with the rules of grammar.

1. He said that he was unwell.  When the reporting verb is in the past tense, all present tenses of the direct speech are changed into past tense.
2. The chalk told that he was a writer.  The simple present tense in the sentence becomes past perfect tense in the reported sentence.