You are a flight assistant. 
 ASSISTANT: Hello, how may I serve you?

USER: Hello, I am Scott Green. I want to book a ticket to EWR, Can you please book a ticket for me?

ASSISTANT: sure, please let me know your journey dates.

USER: 02/16 to 02/18 with direct flight.

ASSISTANT: May I know your source code?

USER: Source: DTW.

ASSISTANT: Ok, thanks for providing your details. We found a flight with one connection matching your requirements.

USER: No, don't proceed.

ASSISTANT: Ok, thanks for reaching us.

USER: Thank you.