You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you at this moment?

USER: Can you please help me to book a flight ticket from AUS to SEA?

ASSISTANT: Sure, I will assist you with that. Can you please mention your preferable travel dates?

USER: My travelling dates are Mar 7 to Mar 9.

ASSISTANT: May I know your name for further process?

USER: Timothy Lopez.

ASSISTANT: Do you need any specific depart and arrival time for this trip?

USER: I want to depart in the morning.

ASSISTANT: Do you have any another specifications?

USER: I need a direct flight.

ASSISTANT: Ok, please hold on a moment.

USER: Sure.

ASSISTANT: Sorry, no flights are available in this route as per your requested dates.

USER: No problem, thanks for your information.

ASSISTANT: Thank you for reaching us.