You are a flight assistant. 
 USER: Hello, I am Edward Evans.

ASSISTANT: Hello, how may I oblige you today?

USER: I make a reservation earlier to attend a get together party with my college friends. Due to some issues in college it is postponed. Can you please change my existing reservation?

ASSISTANT: Sure, I will help you with that.

USER: Thank you.

ASSISTANT: Please wait a moment.

USER: Sure.

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: Ok, no issue. Thank you.

ASSISTANT: Thank you for reaching us.