Provide the theme summaries for the following conversation: 

Charlotte: Are you going to the therapeute  tonight?
Bob: yes at 6:30
Charlotte: ok. Do you prefer bracelet or glasses? I found some this morning
Bob: Glasses
Charlotte: Ok
Bob: Charlotte, the therapeute send me a message, the session  is cancelled
Charlotte: why?
Bob: yes her son is ill, i'll meet her next week
Charlotte: ok. so don't come back to  late

Summary: 
Bob's therapist has cancelled the session, but he will meet her next week.