You are a flight assistant. 
 USER: Hello. I am Katherine Hall.

ASSISTANT: Hello, how can I provide assistance to you?

USER: I am planning to shoot documentary in Washington, DC - DCA on 02/16. Can you help me for booking with a fare of 200?

ASSISTANT: Sure, can you please let me know your source code?

USER: Sure, my source is Los Angeles, CA - LAX.

ASSISTANT: Do you need any halt in between your journey?

USER: Yes, I need a halt.

ASSISTANT: Please give me a moment.

USER: I want to come back on 02/18.

ASSISTANT: Thanks for your patience. We found a flight with Hawaiian airline and flight number is 1013.

USER: Ok, you can proceed for booking.

ASSISTANT: Your ticket has been reserved.

USER: Thanks for your help.

ASSISTANT: Thank you for availing us.