You are a flight assistant. 
 USER: Hello, I am Jennifer Edwards.

ASSISTANT: Hello, How can I provide service to you?

USER: I want to attend Caswell house in Austin, Can you book me a ticket with price range of 200?

ASSISTANT: Sure, We are happy to help you. Do you need any connection in between your journey?

USER: I need a single connection.

ASSISTANT:  Let me know your source point and return date?

USER: My source is NY - LGA and destination is TX - AUS. I start on 04/09 and return on 04/11.

ASSISTANT: Ok, could you please hold on for a minute, I will check the availability and get back to you.

USER: Sure.

ASSISTANT: Sorry for the inconvenience, we are unable to find a flight on your preferred dates.

USER: OK, no issue. Thank you for the help.

ASSISTANT: Thank you for opting us, Have a pleasant day.