You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. What kind of help are you expecting from my side?

USER: I want to visit Denver, CO-DEN for an interview.Can you please help me out?

ASSISTANT: Sure, can I know your preferable dates?

USER: The travelling dates are from 01/02 to 01/04. The source code is form NV-LAS.

ASSISTANT: Hold on for a moment, let me check.

USER: Sure, take your time.

ASSISTANT: Flight 1024 perfectly matches with your given dates, can I proceed with the booking?

USER: Ok, proceed with my booking. My name is Gregory Evans.

ASSISTANT: Gregory, your ticket is booked with AA airlines.

USER: Thank you for your service.

ASSISTANT: Thank you, all the best for your interview.

USER: Thank you.