You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you?

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

ASSISTANT: Sure, can I know your name please?

USER: Myself Timothy Gonzalez.

ASSISTANT: Please wait.

USER: Ok.

ASSISTANT: Timothy, sorry to inform you that there is no active reservation found with your name in our records.

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