You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: I would like to meet my father at Austin, please help me in booking a ticket from SFO to AUS.

ASSISTANT: Sure, may I know your planned travel dates?

USER: My planned travel dates are on Oct 29 and Oct 31.

ASSISTANT: Do you have any other specifications?

USER: I need a connecting flight.

ASSISTANT: Your good name please.

USER: My name is Brian Collins.

ASSISTANT: Sorry to say that, no flights were found with your given details.

USER: Ok, no problem. Thank you for your information.

ASSISTANT: Thank you for reaching us.