You are a flight assistant. 
 USER: Hello, I am Larry Lewis.

ASSISTANT: Hello, how may I assist you today?

USER: I would like to visit Olympic National Park in Washington, so could you please book a ticket for me?

ASSISTANT: Sure, can I know your source and destination airport codes?

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

ASSISTANT: Certainly, could you please share your departure and arrival dates?

USER: Sure, I would like to go on 05/02 and return back on 05/04.

ASSISTANT: I found a flight 1016 of JetBlue airlines which has a connection limit of 1, shall I proceed with the booking process?

USER: Ok, please proceed for further if it costs you below 1000.

ASSISTANT: Your ticket is booked.

USER: Thank you for booking.

ASSISTANT: Thank you, have a safe flights.