You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I am Gary Taylor. I am planning to book a ticket to attend a meeting at OAK. Can you please help me out?

ASSISTANT: Yes, can you tell me your travel dates?

USER: I would like to travel on 01/26 and return back on 01/28.

ASSISTANT: Ok, could you tell me your source airport code?

USER: My source code is AUS.

ASSISTANT: Give me a moment.

USER: Sure.

ASSISTANT: Sorry to inform you that there are no flights found on your requested dates.

USER: That's fine.

ASSISTANT: Thank you for reaching us.

USER: Thank you for your service.