Decition Statement

st=>start: Start
op=>operation: Your Operation
cond=>condition: Yes or No?
e=>end

st->op->cond
cond(yes)->e
cond(no)->op

%% Example of sequence diagram
  sequenceDiagram
    Alice->>Bob: Hello Bob, how are you?
    alt is sick
    Bob->>Alice: Not so good :(
    else is well
    Bob->>Alice: Feeling fresh like a daisy
    end
    opt Extra response
    Bob->>Alice: Thanks for asking
    end

  graph TD;
      A-->B;
      A-->C;
      B-->D;
      C-->D;