You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Lisa Hill.

ASSISTANT: How may I aid you today?

USER: I have an urgent appointment with my business partner, can you book a ticket from IAD to LAS regions?

ASSISTANT: Sure, I am happy to help you in booking a flight ticket. When you are willing to travel?

USER: Thank you for considering my request and I am willing to move on 01/10 and arrival back after two days on 01/12.

ASSISTANT: Please wait for sometime, while I will search a flight for your journey.

USER: Sure, take your own time and provide me an enhanced flight for my journey.

ASSISTANT: Based on your journey dates. I have found a flight with the Frontier airlines having a connection limit 1. Shall I proceed with the booking?

USER: That is perfect to my intent, you can go ahead and proceed with ticket booking process.

ASSISTANT: Yes Hill, I have reserved your ticket with the flight number 1000.

USER: Thank you for your enormous help in my plane ticket reservation.

ASSISTANT: Thank you for opting us. Have a safe journey.

USER: Welcome.