You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: Cynthia Young this side, I am planning for an outing at Washington. Can you help me to book a ticket?

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

USER: Airport codes are EWR to IAD.

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

USER: I am planning to leave on 02/03 and return on 02/05.

ASSISTANT: Ok, please wait for a moment.

USER: Ensure that it's connection limit is 1.

ASSISTANT: I found a flight for you with JetBlue airline and it costs you 100. Shall I proceed?

USER: Please book 1 seat for me.

ASSISTANT: Your ticket has been booked with 1003 flight number.

USER: Thank you for booking instantly.

ASSISTANT: Thank you for reaching us, have a safe flight.

USER: Welcome.