code: import langchain
  from langchain.chains import LLMChain, SimpleSequentialChain, ConversationChain
  from langchain.chat_models import ChatOpenAI
  from langchain.memory import ConversationBufferMemory
  
  
  langchain.verbose = True
  
  chat = ChatOpenAI(model="gpt-3.5-turbo", temperature=0)
  conversation = ConversationChain(
      llm=chat,
      memory=ConversationBufferMemory()
  )
  
  while True:
      user_message = input("You: ")
      ai_message = conversation.predict(input=user_message)
      print(f"AI: {ai_message}")
  
apis: langchain.memory.ConversationBufferMemory langchain.chat_models.ChatOpenAI
extract_api: [((231, 279), 'langchain.chat_models.ChatOpenAI', 'ChatOpenAI', ([], {'model': '"""gpt-3.5-turbo"""', 'temperature': '(0)'}), "(model='gpt-3.5-turbo', temperature=0)\n", (241, 279), False, 'from langchain.chat_models import ChatOpenAI\n'), ((339, 365), 'langchain.memory.ConversationBufferMemory', 'ConversationBufferMemory', ([], {}), '()\n', (363, 365), False, 'from langchain.memory import ConversationBufferMemory\n')]