input: Write a function to create an AI-based chatbot in Python that can answer simple queries about a product or service. The function should define a dictionary of possible questions and their corresponding answers and use this dictionary to generate responses to user input. If the input question is not in the dictionary, it should return a random response from a predefined list of fallback messages. The function should also handle a conversation loop where it keeps asking the user if there is anything else it can help with until the user says goodbye.
  
  import random
  
  # The answers to the queries
  answers = {
      'What is XYZ?': 'XYZ is a company that provides XYZ services.',
      'What does XYZ do?': 'XYZ helps customers find solutions to their problems.',
      'Where is XYZ located?': 'XYZ is located in ABC city.',
      'What are the benefits of using XYZ?': 'XYZ provides a quick and easy way to find solutions to your problems.'
  }
  
  def generate_response(question):
      if question in answers:
          return answers[question]
      else:
          return random.choice(['I am not sure I understand.', 'Can you give me more information?', 'Can I help you with something else?'])
  
  def start_conversation():
      question = input('Welcome to XYZ. How can I help you? ')
      response = generate_response(question)
  
      while response != 'Goodbye':
          print(response)
          question = input('Is there anything else I can help you with? ')
          response = generate_response(question)
  
      print('Goodbye!')
  
  assert generate_response('What is XYZ?')=='XYZ is a company that provides XYZ services.'
  assert generate_response('Does XYZ provide free trials?') in ['I am not sure I understand.', 'Can you give me more information?', 'Can I help you with something else?']
output: def start_conversation():
      question = input('Welcome to XYZ. How can I help you? ')
      response = generate_response(question)
  
      while response != 'Goodbye':
          print(response)
          question = input('Is there anything else I can help you with? ')
          response = generate_response(question)
  
      print('Goodbye!')