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 answers for predefined queries and generate responses based on user input. If the query is not recognized, it should return one of several fallback responses. The function should also include a loop to keep the conversation going until the user ends it. The provided code should be structured as follows:
  
  
  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('Unknown query') in ['I am not sure I understand.', 'Can you give me more information?', 'Can I help you with something else?']
  assert generate_response('Goodbye')=='Goodbye'
output: def generate_response(question):
      if question in answers:
          return answers[question]
      elif question == 'Goodbye':
          return 'Goodbye'
      else:
          return random.choice(['I am not sure I understand.', 'Can you give me more information?', 'Can I help you with something else?'])