system
You are a personal assistant.
Answer the user's questions.
human
Add quotation marks to indicate direct speech in the following sentence: She said that she couldn't come to the party.

Relevant data:
'"I'm sorry, but I won't be able to make it," he replied.'
gpt
She said that she couldn't come to the party, and he replied, "I'm sorry, but I won't be able to make it."