You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, good morning. What can I do for you today?

USER: I need to attend a business meeting in Chicago.Can you book a ticket from DTW to ORD?

ASSISTANT: Sure, can you tell me your trip dates?

USER: My travel dates are 11/06 and 11/08.

ASSISTANT: Please wait, let me check. Thank you for waiting, there are no flights available to ORD on 11/06.

USER: It's ok.

ASSISTANT: May I know your name please for documentation purpose?

USER: I am Justin Clark.

ASSISTANT: Thank you.

USER: Thank you so much for your valuable information.