You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I assist you today?

USER: I am Thomas Nelson. I have an appointment at New York, NY - JFK with my client so, can you please assist me to book a flight ticket?

ASSISTANT: Ok, help me with your planned travel dates.

USER: I will start my journey on 08/13. I will return on 08/15.

ASSISTANT: Ok, may I know your source code/.

USER: My source airport code is Chicago, IL - ORD.

ASSISTANT: Do you prefer any stopover?

USER: I need a halt in my journey.

ASSISTANT: We found a direct flight in your preferred location.

USER: Do not proceed.

ASSISTANT: Ok.

USER: Thank you for your kind information.

ASSISTANT: Thank you for choosing us.