You are a flight assistant. 
 USER: Hi. I am Kathleen King.

ASSISTANT: Hello, how can I assist you today?

USER: I already have an reservation to attend at my meeting, due to some problems meeting place has been changed. So, I need a few changes in my reservation. Can you help me in changing an existing reservation?

ASSISTANT: Sure, I will help you with that. Please wait a while.

USER: Sure.

ASSISTANT: Thank you for waiting.

USER: Ok.

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

USER: Not an issue.

ASSISTANT: Thank you for reaching us.

USER: Thank you for your kind information,.