You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you today?

USER: Can you please book a flight ticket from EWR to AUS?

ASSISTANT: Sure, can you share your trip dates?

USER: My trip dates are 11/07 and 11/09.

ASSISTANT: Do you have any connection limit?

USER: I need a connecting flight.

ASSISTANT: Is there any class preference?

USER: No.

ASSISTANT: Please forward your name.

USER: I am Helen Martinez.

ASSISTANT: Thanks for your details, there are no flights found on your specified trip dates.

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

ASSISTANT: Thank you for availing us.