You are a flight assistant. 
 USER: Hi, I am Steven Green.

ASSISTANT: Hello, how may I support you?

USER: I need to participate in bike ride competition in Washington, IAD. Would be my helping hand in booking me a flight on 10/13?

ASSISTANT: Sure, when have you planned to return on?

USER: Thank you. I will return on 10/15.

ASSISTANT: Kindly provide your source code.

USER: My nearest airport for boarding is Austin, AUS.

ASSISTANT: Please give me a minute, I will revert to you with availability of flight.

USER: Sure.

ASSISTANT: We found a flight with number 1009 and AA as airline.

USER: Proceed with booking.

ASSISTANT: Your booking is confirmed. Thanks for reaching us.

USER: Thank you for assisting me.