You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you?

USER: I am Justin Thomas, I want to change my reservation due to some issue with the destination point.

ASSISTANT: Ok, please wait for a moment.

USER: Ok, sure take your time.

ASSISTANT: Sorry, I did not find any reservation on your name.

USER: It's ok, anyway thank you for the information.

ASSISTANT: My pleasure, have a good day.