You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: Myself Angela White. I would like to meet my brother at Detroit, will you help me in booking the flight ticket from ATL to DTW?

ASSISTANT: Sure, may I know your journey dates?

USER: My travelling dates are 09/26 and 09/28.

ASSISTANT: Please wait for a moment.

USER: Ok, I will wait for your response.

ASSISTANT: Sorry to say that, there are no flights found on your preferable travel dates.

USER: Ok, not an issue. Thank you for your information.

ASSISTANT: Thank you for approaching us.