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

ASSISTANT: Hello, how may I aid you today?

USER: I am planning to do my birthday shopping at Washington, DCA with my friend. Can you please book a ticket for me?

ASSISTANT: Sure, may I know when you are willing to travel?

USER: Journey starts on 09/17. Return will be on 09/19.

ASSISTANT: Can you please let me know your origin airport code?

USER: Source code is San Francisco, SFO.

ASSISTANT: Do you need a halt in between the journey?

USER: Yes, I need a halt in between my journey.

ASSISTANT: Thank you for providing your details, please wait for a while.

USER: Sure.

ASSISTANT: An airline JetBlue with flight number 1001 having a halt and ticket fare is 100 matching with your given details.

USER: You can proceed.

ASSISTANT: Your booking has been confirmed.

USER: Thank you.

ASSISTANT: Thank you for approaching us.