You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you today?

USER: I am Amanda Campbell.

ASSISTANT: Ok.

USER: I need your assistance in booking a flight ticket, to reach my destination at San Francisco, SFO. Can you please help me that?

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: Could you please help me with your travelling dates?

USER: My travelling dates are from 10/31 to 11/02.

ASSISTANT: May I know your source code?

USER: My airport codes are from AUS to SFO.

ASSISTANT: Ok, please wait for a while.

USER: Ok.

ASSISTANT: Sorry, no flights found on your requested travelling dates.

USER: Ok, no problem, I will choose anther way.

ASSISTANT: Thank you for approaching us, have a nice day.

USER: Thank you.