You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I need a direct flight to Austin. Can you help me in booking flight ticket?

ASSISTANT: Sure, May I know your name?

USER: Kenneth Roberts is my name.

ASSISTANT: Let me know when you are willing to travel?

USER: I need to travel on 06/23 and return on 06/25.

ASSISTANT: Can you share me your source and landing points?

USER: DEN is my source and destination is AUS.

ASSISTANT: Ok, wait for some time.

USER: Sure.

ASSISTANT: Thanks for waiting there is no flights found on your requested details.

USER: Ok, no issues. Thanks for your information.

ASSISTANT: Thanks for approaching us.