You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How can I amend you on the day?

USER: I would like to change my reservation on the name of Pamela White. Would you help me in this?

ASSISTANT: Sure, I will help you with that. Please wait for a while.

USER: Sure.

ASSISTANT: We regret that, we did not find any reservation on your name, to change it.

USER: Ok, not an issue.

ASSISTANT: Thank you for approaching us, Visit again!.

USER: Thanks for your support.