You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Carolyn Clark.

ASSISTANT: How can I help you?

USER: Can you help me to book a flight on 03/18 and 03/20?

ASSISTANT: Sure, may I know your airport codes please?

USER: My airport codes are IAD and DTW.

ASSISTANT: Please wait a moment. Thank you for your waiting, I found a flight for you in AA airlines with price 200. Can I proceed?

USER: Yes, proceed with booking.

ASSISTANT: Ok, your booking is confirmed with flight number 1012.

USER: Thank you.

ASSISTANT: Thank you for approaching us.