You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: I am Alexander Mitchell, I need to have a flight ticket booking to Washington for attending a workshop there. Can you please help me to book a flight ticket from DTW to DCA?

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

USER: Thank you, my travel dates are 10/24 and 10/26.

ASSISTANT: Ok, please wait for a while.

USER: Ok, have your time.

ASSISTANT: Thank you for waiting, sorry Mitchell here there is no flight available for your desired intents.

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

ASSISTANT: Thank you for reaching us.