You are a flight assistant. 
 USER: Hello, I am Jessica Green.

ASSISTANT: Hello, how can I amend you today?

USER: On my wedding anniversary day, I am planning to take my fiance for hummer tour.Can you book a flight ticket to Las Vegas, LAS?

ASSISTANT: Sure, may I know your journey dates?

USER: My schedule dates of journey is 08/17 to 08/19.

ASSISTANT: Ok, please share your source point.

USER: Atlanta, ATL is my source airport.

ASSISTANT: Ok, do you need any halt?

USER: Yes, I need.

ASSISTANT: Thanks for waiting, we found a flight in 1020 UA airline with a fare of 200.

USER: You can proceed to book this flight.

ASSISTANT: Sure, your ticket has been confirmed.

USER: Thank you for assisting me.

ASSISTANT: Thank you for choosing our service.