You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I be of your service?

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

ASSISTANT: Sure, can I know on which name your ticket has been booked in past?

USER: The flight ticket was reserved on the name of Jason Anderson.

ASSISTANT: Ok, please wait a moment I will check the reservation list.

USER: Sure.

ASSISTANT: Thanks for waiting, unfortunately there is no reservation found by this name.

USER: That's fine, Thank you.

ASSISTANT: Thanks for approaching us.