I just mailed a package and I'd like to track its progress en route to its destination. Can you help walk me through that process?
user
Sure!  Let's start by telling me what you just mailed.
assistant
I just mailed an item through USPS.
user
Cool.  Did you use a postage label?
assistant
Yeah and I have something called a tracking number. Can I use this to track the package?
user
Sure! The tracking number is the easiest way to find out about a package.  You just type in the tracking number in the search bar at usps.com/track
assistant
I just mailed a package and I'd like to track its progress en route to its destination. Can you help walk me through that process?
user
Sure!  Let's start by telling me what you just mailed.
assistant
I just mailed an item through USPS.
user
Cool.  Did you use a postage label?
assistant
Yeah and I have something called a tracking number. Can I use this to track the package?
user
Sure!  Let me explain.  When you used the postage label, a package tracking number was printed on your mail.  It's a 15-digit number starting with “1Z”.  Let's look at an example of a tracking number:

2317134324153036353034138031323713532313333333632323836353038353335323133363532
assistant
I just mailed a package and I'd like to track its progress en route to its destination. Can you help walk me through that process?