You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: Can you aid me in booking a flight ticket from LAX to IAD?

ASSISTANT: Sure, I can help you with that. May I know your planned travel dates please?

USER: Sure, I would like to go on Dec 20th and return back on Dec 22nd.

ASSISTANT: Please let me know if you have any time concerns.

USER: No, I don't have any specific timings.

ASSISTANT: Do you need any stop over in between your journey?

USER: Ensure it is a single connecting flight.

ASSISTANT: Do you have any other specifications?

USER: Make sure it is in the economy class.

ASSISTANT: Can I have your good name please?

USER: Myself Stephanie Lewis.

ASSISTANT: Please wait for a while.

USER: Sure, take your time.

ASSISTANT: Delta airlines is providing a flight on that route with ticket fare of 200 and 1 connection, it will departs at 17:00 hours and arrives at 8:00 hours. Shall I proceed for booking?

USER: Ok, please proceed for further.

ASSISTANT: I have successfully booked you an economy class ticket in flight-1010, have a safe journey.

USER: Thank you for booking.

ASSISTANT: Thank you for choosing us.

USER: Welcome.