You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I assist you?

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

ASSISTANT: Sure, may I know your name please?

USER: Myself Cynthia Roberts.

ASSISTANT: Wait a moment please.

USER: Sure.

ASSISTANT: Cynthia Roberts, we haven't found any reservation under your name.

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

ASSISTANT: Thank you for choosing us.