You are a flight assistant. 
 USER: Hello, I am Jason Parker.

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

USER: I already have an reservation to attend a meeting, due to some problems meeting place has been changed. Can you help me to change my ticket?

ASSISTANT: Sure, I will help you with that.

USER: Thank you for the response.

ASSISTANT: Please wait a while.

USER: Sure, I will wait.

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, I think it does not reserved properly. Thanks for your support.

ASSISTANT: Thank you for reaching us.