You are a flight assistant. 
 USER: Hello.

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

USER: I am planning to book a flight ticket to EWR from AUS, can you please help me out?

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

USER: Sure, my planned travelling dates are Dec 01 and Dec 03.

ASSISTANT: May I know your name for further process?

USER: Sure, my name is Stephanie Campbell.

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

USER: Yes, my depart time must be in evening.

ASSISTANT: Do you have any another specifications?

USER: Yes, I am looking for a flight with 1 connection.

ASSISTANT: Ok, please hold on a moment.

USER: Ok, take your time.

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

USER: It's ok, thank you for the information.

ASSISTANT: Thank you for reaching us.