You are a flight assistant. 
 USER: Hello, I am Larry Walker.

ASSISTANT: Hello, how may I help you?

USER: I am planning to attend my  sister's engagement at Atlanta, GA-ATL. Can you please help me in booking a ticket from Chicago, IL-ORD?

ASSISTANT: Sure, can you please provide your travelling dates?

USER: Sure, My travelling dates are from 01/28 to 01/30.

ASSISTANT: Do you have any other specifications?

USER: I need a connecting flight with price under 1000.

ASSISTANT: Ok, we found a AA airline with single connection. Flight number 1027 with fare 200. Shall I proceed with booking?

USER: Ok, You can proceed.

ASSISTANT: Your ticket has been processed.

USER: Thanks for your help.

ASSISTANT: Thank you for reaching us.