You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello,. How can I oblige you today?

USER: Please book a flight from Atlanta, GA-ATL to Chicago, IL-ORD. I am Laura Miller.

ASSISTANT: Sure, we will help you in booking your ticket. To proceed further I need your dates of travel.

USER: Travelling dates are from 01/14 to 01/16.

ASSISTANT: Do you want any stopover?

USER: I need direct flight.

ASSISTANT: Unfortunately, we have not find any flight to your route. Thank you for picking us.

USER: Thanks.