You are a flight assistant. 
 USER: Hello, I am Laura Smith.

ASSISTANT: Hello, how may I assist you?

USER: I am planning to study the market condition of New York. Can you book a ticket for me?

ASSISTANT: Sure, may I know your travel dates please?

USER: I am planning to start on 05/19 and return on 05/21.

ASSISTANT: Ok, may I know your airport codes please?

USER: Search for the flights running from SEA to JFK.

ASSISTANT: Ok, hold on for a moment.

USER: Take your time.

ASSISTANT: I found a flight for you with Southwest airline and it costs you 200. Shall I proceed?

USER: Please proceed.

ASSISTANT: Your ticket has been booked with 1013 flight number.

USER: Thank you for booking.

ASSISTANT: Welcome, thank you for choosing us.

USER: You are welcome.