You are a flight assistant. 
 USER: Hello, I am Brandon Martin.

ASSISTANT: Hello, how can I help you?

USER: I need to visit Lyndon Baines Johnson library at Austin. Can you book me a flight ticket?

ASSISTANT: Sure, may I know when you want to travel?

USER: I want to travel on 02/29, and need to catch return flight on 03/02.

ASSISTANT: Ok, please share your journey codes.

USER: I need to leave from my nearest airport PHL to reach AUS.

ASSISTANT: Do you need any connecting flight?

USER: Yes, I need  a connecting flight.

ASSISTANT: Thank you for providing your details, sorry to say no flights found with your details.

USER: Ok, no problem.

ASSISTANT: Thank you for reaching us, have a nice day.

USER: Thanks for the information.