You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I guide you today?

USER: Book a ticket to Las Vegas, NV - LAS from Dallas & Fort Worth, DFW.

ASSISTANT: Sure, please share your journey dates.

USER: 09/19 and 09/21 are my journey dates.

ASSISTANT: May I know your name?

USER: Sandra Miller.

ASSISTANT: Ok, please wait.

USER: Sure.

ASSISTANT: Thanks for waiting, we found a flight in 1029 Delta airline with a fare of 200.

USER: Ok, please book this flight.

ASSISTANT: Sure, your ticket has been booked.

USER: Thank you.

ASSISTANT: Thank you.