You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. Can you please tell me how can I assist you?

USER: I'm Christopher Young.I need to attend my sister's wedding anniversary, can you please help me with booking a flight ticket?

ASSISTANT: Ok, can you please tell me your source and destination codes?

USER: Sure, it is from PHL to AUS.

ASSISTANT: May I know your travelling dates?

USER: Ok, my departure date is on 06/06 and the return date is on 06/08.

ASSISTANT: Happy to say,there is a flight for you with price 200 and flight number is 1028. May I proceed with this ticket?

USER: Yes, please.

ASSISTANT: Ok, your ticket has been booked.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.

USER: You are welcome.