You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, what can I do for you at this time?

USER:  I am Kimberly Hill. I want to book a ticket to NY-LGA from TX-AUS.

ASSISTANT: Sure, can I know your dates?

USER: My travelling dates are 09/23 and 09/25.

ASSISTANT: Just hold on for a moment.

USER: Ok.

ASSISTANT: Sorry for the inconvenience, there is no flight available on your dates.

USER: Ok, thank you for you response.

ASSISTANT: Thank you for opting us.