You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you now?

USER: I am Sharon Lewis. I would like to visit DFW, can you please help me to book a flight ticket from AUS?

ASSISTANT: May I know your travelling dates?

USER: Sure, my journey dates are Jan 18 and Jan 20.

ASSISTANT: Do you need a connecting flight?

USER: I need a connecting flight.

ASSISTANT: May I know your depart and return time?

USER: My departing time is morning.

ASSISTANT: May I know your other requirements?

USER: I don't have any specifications.

ASSISTANT: Sharon Lewis, no flights are available for your journey.

USER: That's ok, thank you for your information.

ASSISTANT: Thank you for choosing us. Have a nice day ahead.