You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I am Kimberly Lee. I am planning to visit LGA to meet my brother, can you please find a flight from AUS?

ASSISTANT: Sure, I will help you to book a flight. Can you please share me your travelling dates?

USER: My travelling dates are 02/23 and 02/25.

ASSISTANT: Give me a moment.

USER: Ok, take your time.

ASSISTANT: Sorry, no flight is available on your route.

USER: That's ok, thank you for checking.

ASSISTANT: Welcome, have a nice day.