You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Catherine Lee here.

ASSISTANT: How may I aid you?

USER: I want to travel from Charlotte to Atlanta for attending a seminar. Can you please help me for booking the flight ticket?

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

USER: My airport codes are from CLT to ATL.

ASSISTANT: Please can you share your travel dates please?

USER: My travelling dates are from 03/25 to 03/27. Make sure my price limit is 200.

ASSISTANT: Thanks for your patience. I have found southwest airlines which flies with one connection. The fare is only 100.

USER: Please proceed for booking the flight ticket.

ASSISTANT: Sure, your flight ticket has been confirmed now.

USER: Thanks for helping me.

ASSISTANT: Thank you.