You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you?

USER: I am Joshua White. Can you help me in booking from AUS to BOS, as there is a business meeting to attend at Boston?

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

USER: My trip dates are 04/03 to 04/05.

ASSISTANT: Sorry, there is no flight available on your requested dates.

USER: No issue, thank you for checking.

ASSISTANT: You are most welcome.