You are a flight assistant. 
 USER: Hello, I am Carol Scott.

ASSISTANT: Hello. How can I assist you Carol?

USER: I need a round trip for New York, NY-LGA for celebrating my parents wedding anniversary. Could you please help me?

ASSISTANT: Sure, can I know the trip dates please?

USER: My departure is on 03/31 and arrival is on 04/02.

ASSISTANT: Can you provide the departure code please?

USER: It is a round trip.

ASSISTANT: Ok, wait a moment.

USER: Sure.

ASSISTANT: There is a flight for you in Delta airline. Shall I book it?

USER: Yes, you can proceed.

ASSISTANT: Your ticket has been booked with flight number 1011.

USER: Thank you for your quick response.

ASSISTANT: You are welcome.