Update app.py

app.py

@@ -23,6 +23,7 @@ llm = HuggingFaceEndpoint(
     top_p=0.8,
     top_k=20,
     max_new_tokens=1024,
+    task="conversational",
     huggingfacehub_api_token=os.getenv("HUGGINGFACEHUB_API_TOKEN")
 )
 math_template = ChatPromptTemplate.from_messages([