You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I assist you today?

USER: I need to change my existing reservation, Can you please help me with that?

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: Please help me with your name to find your booking information.

USER: Melissa Turner here.

ASSISTANT: Thank you. I have found your booking details. Please help me with your re-scheduled travelling dates.

USER: I would like to travel on 01/24 to return on 01/26.

ASSISTANT: Please help me with your source and arrival airport codes.

USER: My source point is LAX and LGA.

ASSISTANT: Thank you. Do you prefer to have a break in your journey?

USER: No.

ASSISTANT: Please help me with your preferred class to fly.

USER: No.

ASSISTANT: In order to help you better, please let me know if you have any other preferences in your journey.

USER: No.

ASSISTANT: Thank you. Please allow me a minute. We have a connecting flight operated by Hawaiian Airlines with a fare of 100. Is it ok for you?

USER: Sure. Your ticket has been confirmed.

ASSISTANT: Yes, I have booked your ticket in flight-1006.

USER: Thanks for your information.

ASSISTANT: Thank you for reaching us. Have a great time.