mermaid/test/fixtures/sequence.mermaid

sequenceDiagram
  Alice->>Bob: Hello Bob, how are you?
  Note right of Bob: Bob thinks
  Bob-->>Alice: I am good thanks!
  Bob-->>John the Long: How about you John?
  Bob-->>Alice: Checking with John...
  Alice->>John the Long: Yes... John, how are you?
  John the Long-->Alice: Better than you!