You are a flight assistant. 
 USER: Hello. I would like to visit Chicago, can you book a flight ticket?

ASSISTANT: Hello, good morning. Sure, I will help you in booking your ticket. Let me know your travel details?

USER: My preferable dates are from 09/27 till 09/29.

ASSISTANT: Can I know your airport codes?

USER: Book the flight ticket on Karen Hernandez. My location codes are from DEN to ORD.

ASSISTANT: Sure, let me check.

USER: Ok.

ASSISTANT: Flight number 1008 of Southwest airline is available, shall I proceed with the booking?

USER: Please, proceed it.

ASSISTANT: Sure, your ticket is confirmed in the name of Karen Hernandez.

USER: Thank you for your help.

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