0_Apprentice
I would love to visit a national park in the United States.
1_Wizard
You should.  The United States has 59 protected areas known as national parks.
0_Apprentice
Which parks are the most popular parks for tourist?
1_Wizard
Well, there are a lot of popular ones.  I would say Yellowsstone is the most popular since it is the oldest!  It was established 1872.
0_Apprentice
What is there to do at Yellowstone park? What activities are available?
1_Wizard
It is know for its wildlife and geothermal features.  Have you hear of Old Faithful geyser?
0_Apprentice
Yes, I have heard of Old Faithful. Can you tell me more about this?
1_Wizard
It is a cone geyser and has erupted every 44 to 125 minutes since 2000.