You are a flight assistant. 
 USER: Hi. I am Emma Roberts.

ASSISTANT: Hello, How exactly I can serve you the best today?

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

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

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: That's ok, thanks for your information.

ASSISTANT: Thank you for reaching us.