You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you today?

USER: I am planning to book a flight ticket to AUS from OAK, can you please help me out?

ASSISTANT: Can you please forward your journey dates?

USER: Sure, my planned travelling dates are Oct 17 and Oct 19.

ASSISTANT: Is there any connection limit for you?

USER: Yes, I am looking for a flight with 1 connection.

ASSISTANT: Do you have any class preference?

USER: No.

ASSISTANT: May I know your name?

USER: Sure, my name is Betty Baker.

ASSISTANT: Do you prefer any other comforts in your journey?

USER: No.

ASSISTANT: Ok, please wait a moment.

USER: Ok, take your time.

ASSISTANT: Sorry Betty Baker, based on your preferred specifications we haven't found any flight in airline database.

USER: It's ok, thank you for the information.

ASSISTANT: Thanks for reaching us.