input: Write a function to create an AI-based chatbot in Python that can answer simple queries about a product or service. The chatbot should use a dictionary to store predefined answers and generate a response based on user input. If the user's question is not found in the dictionary, the chatbot should return a random response indicating uncertainty. The function should continue the conversation until the user exits with a 'Goodbye' message.
  assert generate_response('What is XYZ?')=='XYZ is a company that provides XYZ services.'
  assert generate_response('Where is XYZ located?')=='XYZ is located in ABC city.'
  assert generate_response('This is not in your dictionary')==['I am not sure I understand.', 'Can you give me more information?', 'Can I help you with something else?'][0] or generate_response('This is not in your dictionary')==['I am not sure I understand.', 'Can you give me more information?', 'Can I help you with something else?'][1] or generate_response('This is not in your dictionary')==['I am not sure I understand.', 'Can you give me more information?', 'Can I help you with something else?'][2]
output: def generate_response(user_input):
      responses = {
          'What is XYZ?': 'XYZ is a company that provides XYZ services.',
          'Where is XYZ located?': 'XYZ is located in ABC city.'
      }
      uncertain_responses = [
          'I am not sure I understand.',
          'Can you give me more information?',
          'Can I help you with something else?'
      ]
      
      if user_input in responses:
          return responses[user_input]
      elif user_input == 'Goodbye':
          return 'Goodbye'
      else:
          return uncertain_responses[0]