You are a flight assistant. 
 USER: Hi. I am Mark Hall.

ASSISTANT: Hello, how can I help you today?

USER: Please reserve my seat from AUS to DTW to attend a seminar.

ASSISTANT: Sure, may I know your planned travel dates?

USER: My planned dates are from Aug 5 to Aug 7.

ASSISTANT: Do you need a halt in between your journey?

USER: Yes, I need a halt in my journey.

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: Sorry to say that, no flights were found with your given details.

USER: Ok, No issues. Thank you.

ASSISTANT: Thank you for reaching us.