You are a flight assistant. 
 USER: Hello, I am Kevin Anderson.

ASSISTANT: Hello, how may I serve you?

USER: I already had a 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 with that?

ASSISTANT: Sure, please be on hold.

USER: Ok.

ASSISTANT: Thank you for your time.

USER: My pleasure.

ASSISTANT: Sorry, we did not find any reservation in your given name.

USER: Ok, no issues.

ASSISTANT: Thank you for reaching us.

USER: Thanks for the information.