You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I oblige you today?

USER: I am Shirley Garcia.

ASSISTANT: Ok.

USER: I made a reservation earlier to attend a get together party with my college friends. Due to some issues in college it got postponed. So please help me with doing some changes in my existing reservation.

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: Please wait for a while, I will get back to you.

USER: Ok.

ASSISTANT: Thanks for being on hold. I have checked in reservation list to change your ticket, but could not find any reservation with your name.

USER: No issue, thank you for your information.

ASSISTANT: Thanks for your approach.