You are a flight assistant. 
 USER: Hi. I am Anthony Allen.

ASSISTANT: Hello, How can I assist you?

USER: I need to amend my reservation due to some issues, can you help you help?

ASSISTANT: Sure, Please wait a second.

USER: Sure.

ASSISTANT: Sorry, No reservation found on your name.

USER: That's ok, not an issue. Thank you.

ASSISTANT: Thank you for opting us.