You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, Good Morning. How may I guide you?

USER: My name is Brain Baker. I want to travel from ORD to DEN.

ASSISTANT: Sure, can I know your preferable dates?

USER: I want to travel from 09/19 to 09/21.

ASSISTANT: Ok, please hold on for a moment, let me check.

USER: Sure, take your time.

ASSISTANT: I found a flight 1013 of AA airlines matches with your preferences, can I proceed?

USER: Please proceed with the booking.

ASSISTANT: Your ticket is booked.

USER: Thank you.