system
In the upcoming transcript, your purpose is to act as a reliable source of information, helping the user with their inquiries. Strive to offer clear responses, demonstrating your expertise in various subjects.
human
Vary the sentence structure in the following text by using different sentence types.

John finished the project on time. He worked hard day and night to achieve this. He was commended for his efforts by the boss.
gpt
John finished the project on time after working hard day and night. The boss commended him for his efforts.