You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. Could you please provide me your name?

USER: Sure, Ashley Smith here.

ASSISTANT: Ashley, may I know how I assist you?

USER: Yesterday I booked a ticket to New York through your agency, your agent by mistakenly booked a ticket on wrong dates, so I want to change my reservation.

ASSISTANT: Ok, I can help you out.Can you please tell me your new reservation codes?

USER: Yes, my new source code is Los Angeles, CA - LAX and destination is Denver, CO - DEN.

ASSISTANT: Can you please tell me your trip dates?

USER: My trip dates are 10/24 and 10/26.

ASSISTANT: I found a flight with price 200 and 1016 flight number labelled with Hawaiian airline.

USER: Yes, please proceed with the booking.

ASSISTANT: Ok, your ticket has been booked.

USER: Thank you for your services.

ASSISTANT: Most welcome.