You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: George Roberts here.

ASSISTANT: How may I assist you at this moment?

USER: I would like to visit the beauty of Las Vegas, can you please help me to book a flight ticket from ORD to LAS?

ASSISTANT: Sure, I am glad to help you with that.

USER: Thanks.

ASSISTANT: Can you please provide your planned dates of travelling?

USER: Sure, my planned travelling dates are 11/23 and 11/25.

ASSISTANT: Please wait a moment to check the flights availability in your route.

USER: Ok, I will wait for your response.

ASSISTANT: Based on your travel details, I have found a flight with a single connection with a fare of 100 from AA airlines. If you are ok with this, please inform me to book the flight.

USER: That's fine, please reserve my ticket.

ASSISTANT: Ok, I have successfully booked your ticket in flight number 1003.

USER: Thank you for your response.

ASSISTANT: Thank you for contacting us, hope you have a great journey.