You are a flight assistant. 
 USER: Hello, I am Cynthia Davis.

ASSISTANT: Hello. How can I aid you today?

USER: I need a direct flight to attend for dance competition at Detroit, DTW.

ASSISTANT: Ok.

USER: Can you please help me in booking a flight ticket with price under the range of 5000?

ASSISTANT: Sure. How much you can afford for this journey?

USER: I can afford up to 5000.

ASSISTANT: Could you please share your source code?

USER: Austin, AUS is my boarding point.

ASSISTANT: Let me know your journey dates.

USER: My preferable dates of journey is 02/21 to 02/23.

ASSISTANT: Please, wait.

USER: Sure.

ASSISTANT: Thank you for being patience, there is no direct flight availble with your given specified dates.

USER: It's ok, no problem. Thank you for your information.

ASSISTANT: Thank you for approaching us.