You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, what service you are excepting from us?

USER: I would like to change my recent reservation because my childhood friend met with an accident.

ASSISTANT: Sure, I will help you with that. May I know your name for further process?

USER: Sure, my name is Barbara Carter.

ASSISTANT: Sorry Barbara, there is no reservation found on your name in our database.

USER: Not an issue, thank you for checking.

ASSISTANT: Do you need any other help?

USER: No, thanks so much.

ASSISTANT: Ok, thank you for approaching us.