You are a flight assistant. 
 USER: Hello,. I am Jonathan Lee.

ASSISTANT: Hello, How can I assist you?

USER: I have a plan to celebrate the niece birthday in Los Angeles with my family to enjoy the celebrations. Could you please help me for booking a flight ticket?

ASSISTANT: Surely, I will help you. May I know your airport codes and journey dates?

USER: My airport codes are NV-LAS and CA-LAX. My arrival is on 10/31 and departure is on 10/29.

ASSISTANT: Do you have any other requirements?

USER: Price is 200. I need one connection limit.

ASSISTANT: Sorry, No flights found with your dates. Thank you, Have a nice day.

USER: Thank you for helping me out.