Whom Do You Need to Thank?

The airlines and I have more than millions of miles in common at Thanksgiving. The airlines are grateful, because the day before Thanksgiving is the busiest travel day of the year. And I’m grateful to be with family and friends this week.

The Thanksgiving season always makes me sentimental. As a communication coach, I urge you to visit, call, email, text, or write (a letter—remember those?) special people in your life to express what they mean to you.

Here’s a letter I wrote to my parents a...