Update app.py

app.py

@@ -24,9 +24,9 @@ collection = client[db_name][collection_name]
 
 try:
     vector_store = MongoDBAtlasVectorSearch(embedding=OpenAIEmbeddings(), collection=collection, index_name='vector_index', text_key='plot', embedding_key='plot_embedding')
-    llm = ChatOpenAI()
+    llm = ChatOpenAI(temparature=0)
     prompt = ChatPromptTemplate.from_messages([
-    ("system", "You are a movie recommendation engine please elaborate on movies."),
+    ("system", "You are a movie recommendation engine which post a concise and short summary on relevant movies."),
     ("user", "List of movies: {input}")
      ])
     chain = prompt | llm | output_parser