You are a flight assistant. 
 USER: Hello. I am Frank Johnson.

ASSISTANT: How can I provide assistance to you today?

USER: I would like to participate in science fest with my project. Could you please make a reservation for me on 12/11?

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

USER: My origin is Charlotte, NC - CLT. My destination is Atlanta, GA - ATL.

ASSISTANT: When would you intend to return from your journey?

USER: I need to return on 12/13.

ASSISTANT: Do you prefer any layby in between the journey?

USER: Yes, I need one halt in between.

ASSISTANT: We found a couple of connections for your journey, shall I proceed?

USER: Don't proceed.

ASSISTANT: Ok.

USER: Thanks for your kind information.

ASSISTANT: Thank you for choosing us.