You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I aid you today?

USER: I am Margaret Edwards.

ASSISTANT: Glad to meet you Margaret Edwards.

USER: Please a ticket under normal cost from DTW to ATL.

ASSISTANT: Sure, I am here to help you. May I know your travel dates please?

USER: Thank you, my travelling dates are March 6 and 8.

ASSISTANT: Ok, hold on for a moment. Let me check the best available flight for you.

USER: Ok, take your time.

ASSISTANT: Sorry Margaret Edwards, there are no flights available on your requested dates.

USER: Ok, no problem. Thank you for the response.

ASSISTANT: Welcome, thank you for choosing us. Have a great day.