I can't wait to ride across the United States!  I think it will be easy!
That's such an impressive goal! I heard it takes more than two months, and of course you'll face all sorts of weather and challenges. What's the longest ride you've done in the past?
I recently biked across North Carolina, where I live.  It wasn't too difficult, even with all the changing elevation.  Do you think it will get boring though, to traverse the whole U.S.?
I guess you can consult maps when planning your trip to make sure you get to see some interesting landmarks. And avoid Kansas, of course. What are some must-see landmarks you plan to visit?
I want to end in L.A. so I think riding through the Grand Canyon would be cool.  Are there any bike routes that go through there?
Wow, that's ambitious! But I'm sure it would be amazing to see that scenery. I hear the North Kaibab National Forest has some of the best biking trails through that area, and there's a challenging route over the North Rim. 
Where is the North Rim?
That's just what they call the northern edge of the Grand Canyon, I think it is in Utah and Arizona mostly but I'm not sure. One thing to keep in mind is that they usually close down that part of the state parks for winter, so depending on your travel dates you may only be able to bike around the South Rim.
Yeah I would only do it in the spring or fall.  I'll definitely look out for any seasonal closures though!
Cool. What other sights are you planning to see on your way across the country?