You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you?

USER: I am Kevin Williams. I need to book a flight ticket to Detroit to visit my old house. So, can you please assist me in booking flight ticket?

ASSISTANT: Sure, may I know your travel dates?

USER: My travel dates are as 03/25 and 03/27.

ASSISTANT: May I know your airport codes?

USER: ORD and DTW are my airport codes.

ASSISTANT: Do you have any specification?

USER: Yes, I need a connecting flight.

ASSISTANT: There is no flight on your details.

USER: Ok, no problem.

ASSISTANT: Thank you.

USER: Thank you for your time with us.