You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I aid you for the day?

USER: I am Samuel Martinez, can you help me to search for a direct flight from AUS?

ASSISTANT: Sure, we are here to help you. May I know your preferred dates of travel?

USER: My travelling dates are Dec 04 and Dec 06.

ASSISTANT: Kindly ensure your landing point?

USER: My preferred destination airport code is LGA, so please book a flight in economy class.

ASSISTANT: Please wait a moment, let me search a best flight for you.

USER: Sure.

ASSISTANT: Sorry, there were no flights found on your route.

USER: No issues, thank you for your time.

ASSISTANT: Thank you for reaching us.