Let's have some fun with this. Make-up lesson scenarios follow below.
For absolute thoroughness, let's do a case study:
Alfonso, a piano student of Jesse Micek, has badminton practice every day after school during the last week of April. Alfonso's father Alfonso, Sr. communicates his son's schedule conflict to Jesse ahead of time, at the beginning of April. Jesse is overjoyed at the advance notice and has plenty of time to settle on a make-up lesson date and time in mid-April that is suitable for both Alfonso and his father Alfonso, Sr. (Alfonso, Jr.'s ride). Alfonso, Jr. continues to progress at the piano and his badminton abilities likewise advance. Everyone ends up happy.
For absolute, and I mean absolute thoroughness, let's do one more case study:
Sheila E, a piano student of Jesse Micek, who absolutely is not named after this person, so please stop asking, is taking the S.A.T. test fifteen times during the last week of November. She doesn't think this is excessive. That's her first problem. Her second problem is this: She can't possibly make her lesson that week because her brain would fry! Unfortunately, she neglects to tell Jesse about this conflict, instead simply expecting, "Oh, I'll just get credit for that November lesson next month, in December". Not so, Sheila E - this one ends in tears. No make-up lesson credit carries over into the next month - unfortunately, you missed the opportunity to make the most of your November lesson payment.
All should be clear now. If confused, please refer back to my earlier post.