You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you?

USER: Please book me a ticket from AUS to SEA.

ASSISTANT: Sure. May I know your dates of travel?

USER: My travelling dates are from 03/31 to 04/02.

ASSISTANT: Do you have any specifications?

USER: I need a connecting flight.

ASSISTANT: May I know your name?

USER: I am Carol Scott.

ASSISTANT: Please wait a moment.

USER: Ok.

ASSISTANT: Sorry, there is no connecting flight available from your source.

USER: Fine, thanks for the information.