You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I aid you for today?

USER: I want to book a ticket from AUS to EWR. Could you book a ticket?

ASSISTANT: I am here to help you about that, can you please let me know your planned dates of journey?

USER: Departure is on Mar, 31 and return date is Apr, 2.

ASSISTANT: Would you like to have a direct flight or a connecting flight for your journey?

USER: I would be comfortable with single stop over.

ASSISTANT: Can you please provide your name for reservation purpose?

USER: My name is Benjamin Wilson.

ASSISTANT: Sorry to say this Benjamin Wilson, there are no flights which travels to your region.

USER: Thank you.

ASSISTANT: You are welcome, thank you for reaching us.