You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: I am Helen Rodriguez. Can you please make my reservation from AUS to IAD?

ASSISTANT: Sure, I am here to help you. Can you please provide your travel dates?

USER: Sure, my trip dates are Mar 25 and Mar 27.

ASSISTANT: Do you have any specifications?

USER: I need a connecting flight.

ASSISTANT: Sorry, there are no flights in this route as per your travelling details.

USER: No problem, thank you for your information.

ASSISTANT: Thank you for reaching us.