You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I would like to do my project work at New York, please help me in booking a ticket from AUS to EWR.

ASSISTANT: May I know your desired travel dates please?

USER: My planned travel dates are on Nov 24 and Nov 26.

ASSISTANT: May I know your name please?

USER: My name is Charles Clark.

ASSISTANT: There is a no flight on your desired travel dates.

USER: Ok, no issues. Thank you for your information.

ASSISTANT: Thank you for opting us.