You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: William Scott here.

ASSISTANT: How may I assist you at this moment?

USER: Do you have any flight from ATL to ORD?

ASSISTANT: If you provide your departure and return dates also, we will search a exact flight for you.

USER: Sure, my travelling dates are 12/30 and 01/01.

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

USER: Sure, take your own time.

ASSISTANT: Based on your information, I have found a flight in UA airlines having with the fare of 100. Shall I proceed with this?

USER: You can proceed.

ASSISTANT: Ok, your ticket has been confirmed in flight number 1011.

USER: Thanks for your help.

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