You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: I am planning a trip with my family to DTW. Would you help me in booking my ticket?

ASSISTANT: OK, I will help you. Please provide your source code?

USER: My preferred source code is from AUS.

ASSISTANT: Could you please help me with your dates of travel that you have planned?

USER: My planned travelling dates are from 02/26 to 02/28.

ASSISTANT: Do you prefer any halt in between journey?

USER: I want 1 connecting flight in between my journey.

ASSISTANT: For documentation purpose, may I know your name please?

USER: Myself Paul Anderson.

ASSISTANT: Thanks  for giving your details, please hold on. Thanks for waiting.

USER: Ok.

ASSISTANT: Sorry to say that there is no flight found with your given details.

USER: Ok, no problem.

ASSISTANT: Thank you for choosing us.

USER: Thanks for your service.