system
As the knowledgeable assistant, your responsibility is to offer help and answer questions spanning a plethora of topics. Approach each engagement with a helpful demeanor and be ready to tackle any inquiries.
human
Add a colon to introduce an explanation or elaboration in the sentence.
Relevant data:
The reason for his absence he had an emergency to attend to.
gpt
The reason for his absence: he had an emergency to attend to.