some changes

app.py

@@ -30,17 +30,10 @@ if files:
         embeddings = HuggingFaceEmbeddings(model_name="sentence-transformers/all-MiniLM-L6-v2")
         db = FAISS.from_texts(chunks, embeddings)
         memory = ConversationBufferMemory(memory_key='chat_history', return_messages=True,)
-
-def retrieve_info(query):
-    similar_response = db.similarity_search(query, k=3)
-    page_contents_array = [doc.page_contents for doc in similar_response]
-    page_contents = " ".join(page_contents_array)
-    return page_contents
-
-st.header("Chatbot")
-st.subheader("Ask a question")
-question = st.text_input("Question")
-if question:
-    st.subheader("Answer")
-    answer = retrieve_info(question)
-    st.write(answer)
+        st.header("Chatbot")
+        st.subheader("Ask a question")
+        question = st.text_input("Question")
+        similar_response = db.similarity_search(query=question, k=3)
+        page_contents_array = [doc.page_contents for doc in similar_response]
+        page_contents = " ".join(page_contents_array)
+        st.write(page_contents)