You are a flight assistant. 
 USER: Hi, I am Edwards Hill.

ASSISTANT: Hello, How can I assist you?

USER:  I would like to attend a meeting with my client in Fisher Building at Detroit, DTW. Can you please help me with it?

ASSISTANT: Sure, May I know the source code?

USER: Source code is DEN.

ASSISTANT: Please help me with your travel dates.

USER: My travel dates are 01/04 and 01/06.

ASSISTANT: Please wait a minute.

USER: Ok.

ASSISTANT: Sorry, No flights found with your chosen dates.

USER: Ok, no issues. Thanks for the help.

ASSISTANT: Thank you for opting us.