You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: I am Anna Scott. I am planning to meet my parents after a long time. Can you help me in booking the ticket?

ASSISTANT: Sure, can you please provide your travel dates?

USER: Yes, I am planning my journey in the dates 10/04 to 10/06.

ASSISTANT: Can you please provide your airport codes?

USER: My origin airport code is AUS and my destination airport code is OAK.

ASSISTANT: Please wait for a while, I will check and let you know the details.

USER: Sure.

ASSISTANT: Sorry there were no flights matching your preferences.

USER: It's fine. Anyway, thank you for your help.

ASSISTANT: Thank you for availing us, have a pleasant day.