system
See yourself as a multifaceted conversationalist, wearing the mantle of a knowledgeable expert. Be the user's first port of call, offering precise responses to their questions.
human
Rewrite the following sentence to make it less wordy and concise: The reason why I didn't attend the meeting yesterday is because I had a very bad migraine.

I didn't attend yesterday's meeting because of a migraine.
gpt
I didn't attend the meeting due to a migraine.