You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I support you today?

USER: I am planning to attend a global conference at New York, JFK can you help me booking a flight ticket from Austin, AUS?

ASSISTANT: Sure, I am happy to help you.

USER: Thank you.

ASSISTANT: Can I have your fare limit?

USER: I can pay up to 1000.

ASSISTANT: Please, provide your name.

USER: I am Jonathan Allen.

ASSISTANT: Let me know your starting date of journey?

USER: I will start on 02/20 and return on 02/22.

ASSISTANT: Thanks for sharing the details, give me a minute to check the flight availability.

USER: Sure.

ASSISTANT: Thank you for being patience. I am sorry to inform you that, there are no flights found on your route that matches your requirements.

USER: No problem. Thank you for the information.

ASSISTANT: Thank you for availing us.