You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Patricia Adams.

ASSISTANT: Adams, how can I aid you today?

USER: I have a plan to have a visit to Detroit in the month of September with my friends. Can you help me to book a flight ticket from Washington?

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

USER: Thank you, my travel dates are 09/06 and 09/08.

ASSISTANT: Ok, can you please provide your airport codes?

USER: Ok, my respective airport codes are IAD and DTW.

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

USER: Sure, I will be waiting for your response.

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

USER: Not a problem, I will go with another resources to reach out my destination. Anyways thank you for the information.

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