Update app.py

app.py

@@ -65,7 +65,7 @@ def ui():
         
         llm_chain = ConversationalRetrievalChain.from_llm(
         llm = ChatOpenAI(temperature=0.0,model_name='gpt-3.5-turbo'),
-        retriever=vectorstore.as_retriever())
+        )
         good_morining_audio,sample_rate1=librosa.load('./good-morning.mp3')
         hi_audio,sample_rate2=librosa.load('./good-morning-sir.mp3')
         if 'history' not in st.session_state: