employee { # Employee
  n1: circle label:"Start Expense Allocation"
  n4: rectangle label:"Make Expense Allocation decision"
  n7: rectangle label:"Continue Expense Allocation process"
  n10: circle label:"End Expense Allocation"
  n1.handle(bottom) -> manager.n2.handle(top) [label="Success"]
  n4.handle(bottom) -> manager.n5.handle(top) [label="Valid"]
  n7.handle(bottom) -> manager.n8.handle(top) [label="Next"]
}

manager { # Manager
  n2: rectangle label:"Receive Expense Allocation request"
  n5: rectangle label:"Update records for Expense Allocation"
  n8: rectangle label:"Continue Expense Allocation process"
  n2.handle(bottom) -> finance_app.n3.handle(top)
  n5.handle(bottom) -> finance_app.n6.handle(top)
  n8.handle(bottom) -> finance_app.n9.handle(top)
}

finance_app { # Finance_App
  n3: rectangle label:"Review Expense Allocation details"
  n6: rectangle label:"Continue Expense Allocation process"
  n9: diamond label:"Continue Expense Allocation process"
  n9.handle(right) -> employee.n10.handle(bottom)
  n9.handle(left) -> manager.n8.handle(left) [label="Retry/Rejected"]
  n6.handle(right) -> employee.n7.handle(left)
  n3.handle(right) -> employee.n4.handle(left)
}