You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today?

USER: I want to book a flight ticket from DFW to ATL.

ASSISTANT:  Sure, may I know your travelling dates?

USER: My travelling dates are from Apr 01 - 03.

ASSISTANT:  On which name shall I reserve flight ticket?

USER: Steven Rodriguez.

ASSISTANT: Do you need any specifications?

USER: I prefer for direct flight.

ASSISTANT: Sorry, there are no flights found on given dates.

USER: That's ok, thank you.

ASSISTANT: Thank you for reaching us.