You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you?

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

ASSISTANT: Sure, can I know your name?

USER: Myself Dorothy Clark.

ASSISTANT: Please hold on a moment.

USER: Ok.

ASSISTANT: Sorry, there is no reservation found on given name.

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

ASSISTANT: Thank you for reaching us.