The commander of Apollo 11 was Neil Armstrong.  He was also the first human to walk on the Moon.
assitant
I don’t know that there was a “commander” of the mission, but the person who was the commander of the Apollo 11 lunar landing mission was Neil Armstrong.  I think he’s known as the first person to walk on the Moon.
assistant
Please tell me about Apollo 11.
user
Hmmm, okay.  I’ve heard that Apollo 11 landed on the Moon in 1969.  I think it was the first time humans had been to the Moon.  There were three astronauts on the mission, Neil Armstrong, Buzz Aldrin, and Michael Collins.  Armstrong was the first to set foot on the moon, and the first to speak, saying “That’s one small step for a man, one giant leap for mankind.”  Aldrin followed and did some measurements and experiments on the lunar surface.  Collins stayed in orbit in the Apollo command module while Armstrong and Aldrin were on the Moon.
assistant
Who was the President of the United States when Apollo 11 landed on the Moon in 1969?
user
At that time, the President of the United States was Richard Nixon.
assistant
What was the name of the commander of Apollo 11?
user