You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I render you?

USER: I am Karen Roberts. I wish to visit Detroit with my friends on 02/15, can you please reserve me a flight ticket under the fare range of 200?

ASSISTANT: Sure, we are here to help you.

USER: Thank you.

ASSISTANT: May I know your full journey dates?

USER: I will return on 02/17.

ASSISTANT: Do you need layover in your journey?

USER: Yes, I need a lay by.

ASSISTANT: Kindly, mention your source airport code.

USER: I will fly from Las Vegas, LAS.

ASSISTANT: Please, share your destination airport code.

USER: Landing point is Detroit, DTW.

ASSISTANT: Thank you for sharing your journey details, please hold on.

USER: Sure.

ASSISTANT: Thank you for your valuable time.

USER: Ok.

ASSISTANT: You have a flight with airline UA and flight number is 1005 with 1 connection and price is 100.

USER: You can proceed with booking.

ASSISTANT: Your reservation is done.

USER: Thank you for helping me.

ASSISTANT: Thank you for reaching us, have a nice day.