You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: I am Justin Evans.

ASSISTANT: Ok.

USER: I am planning to attend for my niece's marriage in Las Vegas, so please book a flight ticket from Detroit.

ASSISTANT: Sure, may I know your trip dates please?

USER: My departure day is 11/30, return day is 12/02.

ASSISTANT: May I know your airport code please?

USER: My source and destination airport codes are MI - DTW, NV - LAS.

ASSISTANT: Ok, please wait.

USER: Sure.

ASSISTANT: Thanks for waiting, we found connecting flight 1015 in Frontier airline with fare of 100. Shall I proceed to book?

USER: You can proceed to booking.

ASSISTANT: Your ticket has been booked.

USER: Thank you.

ASSISTANT: Thank you for reaching us.