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 take a question as input and return a response from a pre-defined set of answers. If the question is not in the pre-defined set, the function should return a random response from a list of generic responses. The function should also handle an interactive conversation where the user is prompted for more questions until they say goodbye. Finally, the function should print 'Goodbye!' when the conversation ends.
  
  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.'
  }
  
  # Generate a response
  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?'])
  
  # Start the 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('What does XYZ do?') == 'XYZ helps customers find solutions to their problems.'
  assert generate_response('Where is XYZ located?') == 'XYZ is located in ABC city.'
  assert generate_response('What are the benefits of using XYZ?') == 'XYZ provides a quick and easy way to find solutions to your problems.'
  assert generate_response('Non-existent question') in ['I am not sure I understand.', 'Can you give me more information?', 'Can I help you with something else?']
output: 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?'])