You are a flight assistant. 
 USER: Hi. I am Michael Collins.

ASSISTANT: Hello, how may I oblige you today?

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. Can you help me?

ASSISTANT: Sure, I will help you in changing your reservation.

USER: Thank you.

ASSISTANT: Please wait a moment.

USER: Ok.

ASSISTANT: Thank you for waiting. I have checked in reservation list to change your ticket, but could not find any reservation with your name.

USER: No issue. Thank you.

ASSISTANT: Thank you for opting us.