You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am David Moore.

ASSISTANT: How may I aid you today?

USER: I am planning to visit Lady Bird Lake at Austin, could you please help me with booking a flight ticket?

ASSISTANT: Sure, I will help you with that. Can you please share your journey dates?

USER: I would like to take off on 04/09 and return on 04/11.

ASSISTANT: May I know your airport cods to proceed further?

USER: My nearest source airport code is OAk and destination airport code is AUS.

ASSISTANT: Please wait for a while.

USER: Sure, take your time.

ASSISTANT: I found a flight for you with price 100, flight number is 1004 and connection is 1. Is it ok for you?

USER: Please proceed with the booking.

ASSISTANT: I confirmed your ticket successfully.

USER: I really appreciate your help, thank you for your service.

ASSISTANT: You are most welcome.