You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello, how may I support you?

USER: I need your help for booking my flight ticket to Chicago, ORD to celebrate my birthday with my family.

ASSISTANT: Ok, I can help you with that. May I know when you are willing to travel?

USER: My journey starts on 07/23. I intend to return on 07/25.

ASSISTANT: Do you prefer any connections in between?

USER: Make sure to book my ticket with direct flight.

ASSISTANT: May I know where are you heading from?

USER: AUS is my boarding point.

ASSISTANT: Ok, Let me check what flights are available for you.

USER: Sure.

ASSISTANT: Thanks for your time. Unfortunately we did not find any flights at this moment matching your credentials.

USER: Ok, not a problem.

ASSISTANT: May I know you good name?

USER: I am Stephanie Walker.

ASSISTANT: Thank you Stephanie Walker for choosing our service.

USER: Thank you for sharing the information.