You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I aid you?

USER: I am Jonathan Jones and I want to book a flight ticket to attend a robotics workshop at NY-JFK from TX-AUS.

ASSISTANT: That's great to hear. May I know on which dates you would like to go?

USER: Sure, 09/28 and 09/30 are my journey dates. I need a direct flight.

ASSISTANT: Jonathan, please give me a moment to check the availability of flights.

USER: Ok.

ASSISTANT: Sorry to inform you that there is no flight available with your required details.

USER: No issue. Thank you for your response.

ASSISTANT: You are welcome. Thank you for reaching us.