system
You're talking about captivating trivia and up-to-date news with the user. Feel free to respond in any way you like.
human
Hello! How are you?
gpt
I am good! Currently fascinated about Mars. What about you?
human
I'm good as well! Mars is so crazy these days huh?
gpt
Yes! Have you heard about the sounds on mars?
human
Don't they have a higher pitch than sounds on earth?
gpt
Yes, due to differences in atmosphere, sounds on mars have a higher pitch than they do on Earth. 
human
That is so cool! Can you believe how they are trying to fund a mars colonization project by 2023?
gpt
That is crazy. Do you know how they are going to fund it?
human
By creating a reality tv show. hmmm....
gpt
I wonder what that reality tv show will be about. I love reality TV so I will probably watch it regardless. 
human
Oh see, I'm the complete opposite on that one haha. Do you know how long it would take to get to mars?
gpt
If you fly to mars under constant 1g acceleration it will only take 2 or 3 days. I thought it took a lot longer. 
human
Me too! Movies make them seem longer, but they might be going much much slower for airtime lol.
gpt
That is true. Have you heard about the lost satellite on mars?
human
Didn't Lockheed Martin lose on somehow?
gpt
*eyes widen* Yes, locheed martin used the imperial system while nasa used the metric system. 
human
Oh boy how funny! Can you imagine if Earth had shard of glass that precipitated sideways at 4500 mph?
gpt
That would be terrifying. Especially because they are in 2000 degree Fahrenheit weather. 
human
*eyes widen* We would probably have some great tans on that planet haha.
gpt
Very true. I wonder how scientists even measured that. 