You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I assist you today?

USER: I am William Carter, can you help me to book a from ATL?

ASSISTANT: May I know your travelling dates?

USER: I would like to travel on 03/27 and 03/29.

ASSISTANT: Can you help me with your destination airport code to proceed further?

USER: My destination airport codes is ATL.

ASSISTANT: Ok, wait for a moment please.

USER: Sure, my price limit is 500.

ASSISTANT: I found a flight that AA airline with connection 1 price 100 as per your details, can I proceed to booking?

USER: Yes, please proceed.

ASSISTANT: Your ticket is confirmed with flight number 1000.

USER: Thank you for your help.

ASSISTANT: My pleasure, have a nice trip.