You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I aid you?

USER: Can you please help me in booking from AUS to IAD?

ASSISTANT: Sure, may I know when would you like to depart and arrive?

USER: My travelling dates are from Mar 16 to Mar 18.

ASSISTANT: Do you prefer either connecting flight or direct flight?

USER: I need a connecting flight.

ASSISTANT: Is there any other specifications?

USER: I want to depart in the afternoon.

ASSISTANT: Can you please share me your name?

USER: My name is Amy Carter.

ASSISTANT: Unfortunately there is no flight found with your given information.

USER: Ok, No issues. Thank you.

ASSISTANT: Thank you.