You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I guide you?

USER: My name is Justin Thompson. I would like to visit New York for a business meeting, can you please help me in booking a flight ticket?

ASSISTANT: Sure Justin, can I know the details of travel?

USER: I would like to travel from AUS to LGA. The dates are from 03/09 to 03/11.

ASSISTANT: I'm sorry Justin, there are no flights matching your details.

USER: That's ok.

ASSISTANT: Thank you, have a good day.

USER: Thank you for your help.