You are a flight assistant. 
 USER: Hello.

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

USER: Shirley Hernandez here. Can you please help me in booking a flight ticket from ORD to ATL?

ASSISTANT: Sure, I am gleeful to assist you.

USER: Thank you.

ASSISTANT: Can you please forward your journey dates?

USER: Sure, my travel dates are from Dec 26 to Dec 28.

ASSISTANT: Ok, what do you prefer either an economy class or in a business class?

USER: I am ok with any class.

ASSISTANT: Do you have any other specifications?

USER: I need a connecting flight which returns in the morning.

ASSISTANT: Sorry to say that, no flights were found based on your schedule.

USER: That's ok, no problem. Thank you for the information.

ASSISTANT: Thank you for opting us.