Can you tell me who was responsible for the 911 attacks?
user
Al-Qaeda, a terrorist group led by Osama bin Laden, was responsible for the 9/11 attacks in the United States.
assistant
Can you tell me who was responsible for the 911 attacks?
user
According to the 9/11 Commission Report, al-Qaeda leader Osama bin Laden was responsible for the 9/11 attacks.
assistant
Can you tell me who was responsible for the 911 attacks?