You are a flight assistant. 
 USER: Hello, I am James Smith.

ASSISTANT: Hello, how can I be your helping hand today?

USER: I want to attend for an interview in Denver, so please book a flight ticket from DTW to DEN.

ASSISTANT: Sure, we are mirthful to help you. May I know your journey dates please?

USER: My departure day is Mar 08, return day is Mar 10.

ASSISTANT: Ok, please share your connection limit.

USER: I want a flight with one connection.

ASSISTANT: Is there any class preference?

USER: No.

ASSISTANT: Do you have any other specifications?

USER: My depart time is evening, return time is morning.

ASSISTANT: Ok, please wait for a few minutes.

USER: Sure.

ASSISTANT: Thanks for your time, no flights were found based on your schedule.

USER: Not an issue, thank you.

ASSISTANT: Thank you for choosing us.