Update app.py

app.py

@@ -11,7 +11,7 @@ prompt = ChatPromptTemplate.from_messages([
     ("human", "{input}")
 ])
 
-chain = prompt | llm
+
 
 # Streamlit interface
 st.title("Email Reply Generator")
@@ -22,6 +22,7 @@ user_input = st.text_area("Email Text")
 
 # Generate and display the response
 if st.button("Generate Reply"):
+    chain = prompt | llm
     response = chain.invoke({"input": user_input})
     st.write("Generated Reply:")
     st.write(response.content)