You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I aid you for today?

USER: Susan Robinson here. I would like to book a ticket from OAK to AUS, can you please help me with that?

ASSISTANT: Sure, I am glad to help you in booking your flight ticket Susan Robinson. Could you please help me by providing your planned dates of journey?

USER: The travel dates are from 04/25 to 04/27.

ASSISTANT: Would you like to have any halt in between your journey?

USER: I need a halt.

ASSISTANT: I regret to say this Susan Robinson, there are no flights which can travel to your region.

USER: That's ok, thank you for your help.

ASSISTANT: You are welcome, thank you for reaching us.