old_contents: def new_procedure_message(procedure, location, duration, doctor):
      unique_reference = str(1)
      message = str.format("{0} is available on {1}. Attend the ward in {2} and meet {3} in the junior doctors' office. "
                           "To accept this opportunity reply with {4}",
                           procedure,
                           ward,
                           duration,
                           doctor,
                           unique_reference)
      print(message)
      return message
  
  
  def success_response_message(procedure, location, duration, doctor):
      message = str.format("Please attend {0} in {1} and ask for {2} to complete this supervised "
                           "procedure. This learning opportunity has been reserved exclusively for you, please make "
                           "every effort to attend.",
                           ward,
                           duration,
                           doctor)
      print(message)
      return message
  
  
  def not_successful_response_message():
      message = str.format("Sorry - procedure already taken this time.")
  
      print(message)
      return message
new_contents: def new_procedure_message(procedure, location, duration, doctor):
      unique_reference = str(1)
      message = str.format("{0} is available on {1}. Attend the ward in {2} and meet {3} in the junior doctors' office. "
                           "To accept this opportunity reply with {4}",
                           procedure,
                           location,
                           duration,
                           doctor,
                           unique_reference)
      print(message)
      return message
  
  
  def success_response_message(procedure, location, duration, doctor):
      message = str.format("Please attend {0} in {1} and ask for {2} to complete this supervised "
                           "procedure. This learning opportunity has been reserved exclusively for you, please make "
                           "every effort to attend.",
                           location,
                           duration,
                           doctor)
      print(message)
      return message
  
  
  def not_successful_response_message():
      message = str.format("Sorry - procedure already taken this time.")
  
      print(message)
      return message
subject: Fix field name issue