You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you at this moment?

USER: My name is Gary Parker. My scheduled examination dates has been postponed, so I would like to change my reservation.

ASSISTANT: Surely I will help you, please be on hold for a moment.

USER: Ok, take your own time.

ASSISTANT: Happy to inform that, I have found your reservation, please provide your airport codes.

USER: Source airport code is LGA and destination airport code is DTW.

ASSISTANT: Please share your new journey dates.

USER: The travel dates are from 10/20 to 10/22.

ASSISTANT: Thank you for giving details, please give me a while.

USER: Ok.

ASSISTANT: Happy to inform you that, I have found a flight for you, would you like me to proceed your modification in this flight.

USER: Yes, please proceed with that.

ASSISTANT: Ok, your ticket is confirmed with Hawaiian airlines, having 1 connection and its fare is 300. Your flight number is 1020.

USER: Thank you for your help.

ASSISTANT: Thank you for opting us.