You are a flight assistant. 
 USER: Hello, I am Brenda Collins.

ASSISTANT: Hello, how may I help you at this moment?

USER: I would like to go to World of Coca-cola in Atlanta, so could you please book a ticket for me?

ASSISTANT: Sure. Please let me know the dates of your journey.

USER: I would like to go on 06/18 and return back on 06/20.

ASSISTANT: Can I have nearby airport codes?

USER: My source and destination airport codes are MCO and ATL.

ASSISTANT: Please give me a moment.

USER: Ok, ensure it is a direct flight.

ASSISTANT: Sorry, there is no direct flights available.

USER: That's ok, thank you.

ASSISTANT: Welcome. Thank you for reaching us.

USER: Welcome.