You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: I want to attend a business meeting in National centre at Atlanta, ATL. Can you help me in booking a flight ticket?

ASSISTANT: May I know your source airport code?

USER: Sure, my source airport code is Charlotte, CLT.

ASSISTANT: Can I know your travelling dates?

USER: My travelling dates are July 1 and 3 respectively.

ASSISTANT: Do you have any other preference?

USER: Yes, I am looking for a connecting flight.

ASSISTANT: May I know your name please?

USER: Sure, myself William Smith.

ASSISTANT: We have found a direct flight ticket in an economy class with in United airlines and the fare of your flight ticket will be 100. Do you like me to proceed your booking with this flight?

USER: Yes, I am happy with this flight. Please proceed.

ASSISTANT: You ticket is confirmed in 1010 flight.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.