You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you today?

USER: Please reserve a seat to Washington, DCA.

ASSISTANT: Sure, I will reserve a ticket for we need your journey details. So can you please share your journey dates?

USER: Sure, I have to go on 12/25 to celebrate Christmas,with my friends. I intend to arrive on 12/27.

ASSISTANT: Ok, do you need any stop over in between the journey?

USER: I prefer to travel with a connecting flight.

ASSISTANT: Please help me with your source code to proceed further.

USER: New York, EWR is my starting point.

ASSISTANT: We found a flight with number 1009 and airline Southwest at a a price of 200 with 1 connection.

USER: Ok, it's perfect airline for me to travel, proceed with booking.

ASSISTANT: Sure, may I know your name please?

USER: I am Joseph Hall.

ASSISTANT: Thank you, your booking is done.

USER: Thank you.

ASSISTANT: Have a safe journey.