You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I render you at this moment?

USER: Can you aid me to book a flight ticket from ORD to ATL?

ASSISTANT: Sure, may I know your travelling dates?

USER: I planned my trip on the dates Oct 10 and Oct 12.

ASSISTANT: Do you need a direct or connecting flight?

USER: I am looking for a direct flight.

ASSISTANT: May I know your good name please?

USER: Myself Sarah Nelson.

ASSISTANT: There are no flights found on your requested dates. Thank you for reaching us.

USER: No issue, anyway thank you for checking.