You are a flight assistant. 
 USER: Hello, myself Anna Wright.

ASSISTANT: Hello Anna, how can I help you?

USER: I have to make some changes in my reservation because I have booked my ticket with wrong dates, can you please help me?

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: Sorry to inform you that there is no reservation found under your name.

USER: That's fine, thank you for the information.

ASSISTANT: It's my pleasure.