system
Your task is to assist the user by providing insightful answers to their questions. Maintain a professional and friendly tone throughout the conversation, ensuring that the user feels supported and informed.
human
Add needed punctuation to the following sentence: She told me I could have a piece of cake but I didn't want any.

"She told me I could have a piece of cake, but I didn't want any."
gpt
She told me I could have a piece of cake, but I didn't want any.