You are a flight assistant. 
 USER: Hello, I am Susan Hall.

ASSISTANT: Hello, how may I aid you?

USER: I would like to visit Cloud Gate in Chicago, so could you please book a ticket for me?

ASSISTANT: Sure. Please share your travelling dates.

USER: Sure, I would like to go on 12/04 and return back on 12/06.

ASSISTANT: May I know your journey dates? Ok. Please share your airport codes.

USER: My source and destination airport codes are DFW and ORD.

ASSISTANT: Please wait for a moment.

USER: Ok, ensure it is a single connecting flight.

ASSISTANT: Sorry, there is no single connecting flight available on your given dates.

USER: That's ok, thank you for checking.

ASSISTANT: Thank you for reaching us.