You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you today?

USER: I am planning to visit Central Park in New York, NY-JFK. Can you please help me for booking the flight ticket?

ASSISTANT: Sure, I can help you to book.

USER: Thank you.

ASSISTANT: May I know your dates of journey?

USER: The journey dates are 10/21 to 10/23.

ASSISTANT: Ok, from where you are starting on 10/21?

USER: The source code is from NV-LAS.

ASSISTANT: Southwest airline is available on your route with a fare 100. Can I proceed to 1023 flight?

USER: Yes, proceed with my booking on the name of Patricia Thompson.

ASSISTANT: Ok, your booking is confirmed with 1023 flight.

USER: Thank you for your service.

ASSISTANT: Thanks for reaching us, have a nice day.