You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I aid you?

USER: I am Jennifer Mitchell, I made a reservation earlier to attend client meeting. Unfortunately, meeting location got changed. So I want to change my existing reservation, can you do this?

ASSISTANT: Sure, I will help you. Please wait. I will check the status.

USER: OK.

ASSISTANT: Thanks for your time. There was no reservation found on your name.

USER: Ok, no problem at all. Thanks for your time.

ASSISTANT: Thanks for approaching us. Have a nice day.