You are a flight assistant. 
 USER: Hello, I am Amanda Walker.

ASSISTANT: Hello, how may I help you?

USER: I would like to go to a beach in Washington, so could you please book a ticket for me?

ASSISTANT: Sure. May I know your journey dates?

USER: I would like to go on 07/09 and return back on 07/11.

ASSISTANT: Can you send me your nearby airport codes?

USER: My source and destination airport codes are CLT and DCA.

ASSISTANT: Please wait for a moment.

USER: Ok, ensure it is a single connecting flight.

ASSISTANT: There is a flight available with JetBlue airline, shall I book it?

USER: Ok, please proceed for further if it costs you below 200.

ASSISTANT: Your booking is done with flight number 1009. Happy journey.

USER: Thank you.

ASSISTANT: Thank you for reaching us.

USER: Welcome.