You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Nicole Collins.

ASSISTANT: How can I help you?

USER: Can you help me in booking from AUS to IAD, as there is a business meeting to attend?

ASSISTANT: Sure, may I know your dates of travel please?

USER: My trip dates are Sep 22 to Sep 24.

ASSISTANT: Do you have any other specifications?

USER: I need a connecting flight.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Sorry for the inconvenience, we have not found any flights running on your desired routes.

USER: No issue, thank you.

ASSISTANT: Thank you for opting us.