input: def run_chatbot():
      """ Create a simple text-based chatbot that operates on a state diagram. The chatbot will 
      initialize at 'state0' and will respond to user inputs by transitioning between states. 
      If a user's input matches a defined reply in the current state, the chatbot will transition 
      to the corresponding state. If no match is found, the chatbot will prompt the user to try 
      again. The chatbot will end the conversation when it reaches a state without any replies.
      >>> run_chatbot()
      Hello! How can I help you?
      >> I need some advice
      Sure, what kind of advice do you need?
      >> Career advice
      It is always a good idea to research the field you are interested in and creating a plan to learn the skills that are required. Make sure to contact professionals in the field to understand their experience.
      Goodbye!
      =========================
      Conversation:
      Hello! How can I help you?
      I need some advice
      Sure, what kind of advice do you need?
      Career advice
      It is always a good idea to research the field you are interested in and creating a plan to learn the skills that are required. Make sure to contact professionals in the field to understand their experience.
      """
      
      # Create the states
      state0 = {
           'name': 'state0',
           'message': 'Hello! How can I help you?',
           'replies': {'I need some advice': 'state1', 'Can you answer my questions?': 'state2'}
      }
      
      state1 = {
           'name': 'state1',
           'message': 'Sure, what kind of advice do you need?',
           'replies': {'Career advice': 'state3','Health advice': 'state4'}
      }
      
      state2 = {
           'name': 'state2',
           'message': 'Yes, I'll do my best! What do you want to know?',
           'replies': {'Where can I find good tutorials': 'state5', 'Why is coding so hard': 'state6'}
      }
      
      state3 = {
           'name': 'state3',
           'message': 'It is always a good idea to research the field you are interested in and creating a plan to learn the skills that are required. Make sure to contact professionals in the field to understand their experience.',
           'replies': {}
      }
      
      state4 = {
           'name': 'state4',
           'message': 'Focus on eating healthy and staying active. Make sure to consult a medical professional if you have any concerns.',
           'replies': {}
      }
      
      state5 = {
           'name': 'state5',
           'message': 'You can find tutorials online or join coding communities to get help from experienced coders. StackOverflow and Cod Academy are great resources.',
           'replies': {}
      }
      
      state6 = {
           'name': 'state6',
           'message': 'Coding can be challenging, especially at first. Just remember that with practice, patience and problem solving skills you can overcome the obstacles.',
           'replies': {}
      }
      
      # Initialize the state
      current_state = state0
      
      # Keep a record of the conversation
      conversation = []
      
      while True:
          # Print the current state message
          print(current_state['message'])
          conversation.append(current_state['message'])
          
          # Get the user input
          user_input = input('>> ')
          conversation.append(user_input)
          
          # Update the state
          if user_input in current_state['replies']:
              current_state = eval(current_state['replies'][user_input])
          else:
              print("I don't understand what you mean. Please try again.")
          
          # End the conversation when the state is terminal
          if not bool(current_state['replies']):
              print('Goodbye!')
              break
      
      print("=========================")
      print("Conversation:")
      for message in conversation:
          print(message)
output:     # Create the states
      state0 = {
           'name': 'state0',
           'message': 'Hello! How can I help you?',
           'replies': {'I need some advice': 'state1', 'Can you answer my questions?': 'state2'}
      }
      
      state1 = {
           'name': 'state1',
           'message': 'Sure, what kind of advice do you need?',
           'replies': {'Career advice': 'state3','Health advice': 'state4'}
      }
      
      state2 = {
           'name': 'state2',
           'message': "Yes, I'll do my best! What do you want to know?",
           'replies': {'Where can I find good tutorials': 'state5', 'Why is coding so hard': 'state6'}
      }
      
      state3 = {
           'name': 'state3',
           'message': 'It is always a good idea to research the field you are interested in and creating a plan to learn the skills that are required. Make sure to contact professionals in the field to understand their experience.',
           'replies': {}
      }
      
      state4 = {
           'name': 'state4',
           'message': 'Focus on eating healthy and staying active. Make sure to consult a medical professional if you have any concerns.',
           'replies': {}
      }
      
      state5 = {
           'name': 'state5',
           'message': 'You can find tutorials online or join coding communities to get help from experienced coders. StackOverflow and Cod Academy are great resources.',
           'replies': {}
      }
      
      state6 = {
           'name': 'state6',
           'message': 'Coding can be challenging, especially at first. Just remember that with practice, patience and problem solving skills you can overcome the obstacles.',
           'replies': {}
      }
      
      # Initialize the state
      current_state = state0
      
      # Keep a record of the conversation
      conversation = []
      
      while True:
          # Print the current state message
          print(current_state['message'])
          conversation.append(current_state['message'])
          
          # Get the user input
          user_input = input('>> ')
          conversation.append(user_input)
          
          # Update the state
          if user_input in current_state['replies']:
              current_state = eval(current_state['replies'][user_input])
          else:
              print("I don't understand what you mean. Please try again.")
          
          # End the conversation when the state is terminal
          if not bool(current_state['replies']):
              print('Goodbye!')
              break
      
      print("=========================")
      print("Conversation:")
      for message in conversation:
          print(message)