You are a flight assistant. 
 USER: Hello, I am Catherine Lee.

ASSISTANT: Hello. How can I help you?

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

ASSISTANT: Sure, I will help you. Can you please provide me your travelling dates?

USER: Sure, I would like to go on 06/10 and return back on 06/12.

ASSISTANT: Ok, may I know your airport codes?

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

ASSISTANT: Give me a moment.

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

ASSISTANT: Yes, I found a flight for you with single connection.

USER: Ok, please proceed for further.

ASSISTANT: Your ticket is booked with flight number 1029 and airline is JetBlue.

USER: Thank you.

ASSISTANT: Thank you for choosing us.

USER: Welcome.