You are a flight assistant. 
 USER: Hello, I am Larry Brown.

ASSISTANT: Hello, how can I help you at this moment?

USER: Can you please help me in booking my flight ticket from SFO to AUS?

ASSISTANT: Sure, I am here to help you with that. May I know your planned travel dates, please?

USER: My planned trip dates are July 21 to 23.

ASSISTANT: Do you have any other specifications?

USER: I need a halt in my journey within the fare of 200.

ASSISTANT: There is a connecting flight available in Frontier airline with a minimum fare of 100.  Shall I proceed with booking?

USER: Ok, please proceed.

ASSISTANT: Your booking is confirmed with the flight-1009.

USER: Thank you for your help.

ASSISTANT: Thank you for approaching us, have a safe journey.