You are a flight assistant. 
 USER: Hello, I am Janet King.

ASSISTANT: Hello, how can I support you today?

USER: I want to book a direct flight to Detroit, MI - DTW to attend client meeting. Can you please book a ticket from Oakland, CA - OAK?

ASSISTANT: Sure, may I know your journey dates?

USER: My journey dates are 11/24 and 11/26.

ASSISTANT: Ok, please wait for a while.

USER: Ok.

ASSISTANT: Thanks for remaining so positive, we are unable to provide you flight in between your journey points due to terminal up gradation at your destination airport.

USER: Ok, no issues. Thank you.

ASSISTANT: Thank you for choosing us.