The sentences and their conversions along with the direct speeches have been identified.
1. Direct speech: Rita said, "I have a very bad headache today!"
Rita said that she had a very bad headache today.
2. I said that I was going to Dubai on a business trip in the coming week.
Direct speech: I said, "I am going to Dubai on a business trip next week."
3. Direct speech: "You should call your parents at least once a week," she told me.
She told me that I should call my parents at least once a week.
4. He asked if Alisha would be in the office the next day.
Direct speech: He said, "Will Alisha be in the office tomorrow?"
5. Shivani told me that her parents were out of town.
Direct speech: Shivani told me, "My parents are out of town."
6. Direct speech: She asked him, "Is everything alright?"
She asked him if everything was alright.
7. Direct speech: The manager asked me, "When can you send me the report?"
The manager asked me when I could send the report.
8. The librarian told the visitors to turn off their cell phones.
Direct speech: The librarian said to the visitors, "Turn off your cellphones."
9. The signboard says that the children must be accompanied by an adult all the time.
Direct speech: The signboard says, "The children must always be accompanied by an adult at all times"
10. Direct speech: "It rained here last night," Simran told us.
Simran told us that it had rained there last night.