You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I support you today?

USER: Please book a flight ticket from DFW to EWR?

ASSISTANT: Sure, on which dates would you like to travel?

USER: My journey dates are Oct 09 and Oct 11.

ASSISTANT: Do you have any specifications?

USER: I need a connecting flight.

ASSISTANT: May I know your name?

USER: I am Dennis Young.

ASSISTANT: Please wait, I will check the availability of flights and let you know.

USER: Sure.

ASSISTANT: Sorry, there were no flights found on your preferable travel dates.

USER: No problem, thank you for your information.

ASSISTANT: Thank you for availing our services.