You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I serve you?

USER: I am Jason Lee. Can you please change my reservation to new locations?

ASSISTANT: Sure.

USER: Thanks.

ASSISTANT: I will help you with that. Please wait for a moment.

USER: Sure, take your time.

ASSISTANT: Thanks for waiting Jason. But I am sorry to say that there is no flight reservation on your name to change it.

USER: It's ok, thanks for your information.

ASSISTANT: Thank you.