You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

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

ASSISTANT: Sure, can you please mention your departure and arrival dates of your journey?

USER: My trip dates are Sept 25 and Sept 27.

ASSISTANT: Do you need any layover in between  journey?

USER: I prefer direct flight for this trip.

ASSISTANT: Is there any other specifications regarding your journey?

USER: No.

ASSISTANT: Can I know your name for booking your flight ticket?

USER: I am Donna Rodriguez.

ASSISTANT: Thanks for sharing your details, we are unable to provide flight in between your journey routes.

USER: No problem, thank you for the information.

ASSISTANT: Thank you for reaching us.