You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I provide assistance for you now?

USER: I am Susan Edwards. I am planning to attend a live music concert at Atlanta, ATL. Can you book a ticket within the fare of 5000?

ASSISTANT: Sure. From which place you are going to start your journey?

USER: I want to start my journey from Austin, AUS.

ASSISTANT: Kindly mention your journey dates.

USER: 11/12 and 11/14 are my journey dates.

ASSISTANT: Wait a minute.

USER: Sure.

ASSISTANT: Thanks for waiting. I am sorry to inform you that I couldn't see any flights on your requested dates.

USER: No problem, thank you for the information.

ASSISTANT: Thank you.