You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I have to do some modification in my previous flight ticket booking that there is a sudden event held at my home town, so I am unable to travel the trip. Can you please help me out in changing my reservation?

ASSISTANT: Sure, I am here to help in changing your recent reservation.

USER: Thank you.

ASSISTANT: Can you please help me with your name?

USER: Myself Paul Phillips.

ASSISTANT: Please wait a moment.

USER: Sure.

ASSISTANT: Paul Phillips, I found a reservation to change your ticket. Can you please help me with the airport codes?

USER: My airport codes are from IAD to LAS.

ASSISTANT: Please share your trip dates.

USER: My trip dates will be from 08/26 to 08/28.

ASSISTANT: Do you have any connection limit preference?

USER: Yes, I need a single connecting flight.

ASSISTANT: Do you have any other specifications?

USER: No.

ASSISTANT: Please wait a moment.

USER: Sure.

ASSISTANT: Thank you for waiting. Here I found a direct flight with Hawaiian Airlines and the airfare is about 200. Shall I change your reservation to flight 1014?

USER: Please change my reservation.

ASSISTANT: Your reservation is changed.

USER: Thank you.

ASSISTANT: Thank you for choosing our agency.