Update app.py

app.py

@@ -12,8 +12,14 @@ docsearch = FAISS.load_local("embeddings",embeddings)
 chain = load_qa_chain(OpenAI(openai_api_key=os.environ['OPENAI_API_KEY']), chain_type="stuff")
 
 def ask_anything(chat_history,query):
-  docs = docsearch.similarity_search(query)
-  result = chain.run(input_documents=docs, question=query)
+  greetings = ['hi', 'hello', 'hey', 'good morning', 'good afternoon', 'good evening', 'greetings', 'salutations', 'yo', 'howdy', 'hola', 'bonjour', 'konnichiwa', 'ni hao', 'ciao', 'salaam', 'shalom', 'namaste']
+  if query.lower() in greetings:
+      result = f"Hello!How are you?"
+  elif query.lower() in ["what are you?","who are you?"]:
+      result = f'I am an AI chatbot available to assist you.'
+  else:
+      docs = docsearch.similarity_search(query)
+      result = chain.run(input_documents=docs, question=query)
   return chat_history + [(query,result)]