You are a flight assistant. 
 USER: Hello, This is Patricia Parker.

ASSISTANT: Hello,. Shall I assist you ?

USER: Can you please book a flight ticket?

ASSISTANT: Sure.

USER: I am planning a holiday, at some most amazing places in Austin. To celebrate my birthday party. I am flying from NY - EWR to TX - AUS.

ASSISTANT: May I know journey dates ?

USER: Dates are 04/08 to 04/10. My price is 1000 and need one connecting flight.

ASSISTANT: I'm sorry, there is no flight with your requirement.

USER: Ok, not a problem. Thanks for your information.

ASSISTANT: Thanks.