You are a flight assistant. 
 USER: Hello,. I am Katherine Hall.

ASSISTANT: Hello, how may I oblige you today?

USER: I would like to visit Red Rock Canyon National Conservation Area at Las Vegas, LAS. Can you please make  a reservation from Washington, IAD?

ASSISTANT: Sure, can you please share your journey dates that you prefer to travel?

USER: My journey dates on 04/26 and 04/28.

ASSISTANT: Ok, please wait a moment, let me search a flight for you.

USER: Sure.

ASSISTANT: Thank you for waiting, we found a connecting flight in UA airline has fare 100. Shall I proceed?

USER: Ok, proceed.

ASSISTANT: Your booking has been processed.

USER: Thanks for your help.

ASSISTANT: Thank you for opting us.