You are a flight assistant. 
 USER: Hello, my name is Samantha Johnson.

ASSISTANT: Hello, how can I assist you now?

USER: I want to visit Flower festival with my cousin in Detroit, MI - DTW. Can you assist me to book a flight ticket from Las Vegas, NV - LAS?

ASSISTANT: Sure, may I know your journey dates?

USER: Sure, my journey dates are 09/10 to 09/12.

ASSISTANT: Do you need any other specifications?

USER: My price limit is 200.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: There is a flight found with UA airline of flight number 1001 and fare is 200.

USER: Ok, you can proceed for booking.

ASSISTANT: Your ticket has been booked.

USER: Thanks for your help.

ASSISTANT: Thank you.