You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, How can I assist you today?

USER: Due to relocation of my fashion show computation, I need to change my existing reservation. Can you help me?

ASSISTANT: Sure, We are happy to help you. To proceed further, may I know your good name?

USER: Christine Williams, is my name.

ASSISTANT: Please wait a while.

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, not an issue. Thanks for availing me.

ASSISTANT: Thank you for opting us.