text: Evan: Hi Dennis, I need to cancel my lesson tomorrow, sorry.
  Dennis: Fine, what's up?
  Evan: Oh, got the flu, been off college since Tuesday. Should be ok for next Thurs.
  Dennis: OK, just tell me in good time if you can't make it. Hope you feel better soon.
  Evan: Bye, Den! Thanks.
target: Evan can't come to his lesson tomorrow, because he's got the flu.