You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: Would it be possible to change my reservation, which I have done with my name?

ASSISTANT: Please share your name?

USER: Sure, Daniel King here.

ASSISTANT: Please wait.

USER: Sure.

ASSISTANT: Sorry to say, there is no reservation found on your name.

USER: No issues, thank you for the information.

ASSISTANT: Thank you.