You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you?

USER: I just want to cancel my recently done reservation, because of postpone of examination.

ASSISTANT: Please give me a minute.

USER: Sure.

ASSISTANT: May I know your name?

USER: Myself Cynthia Johnson here.

ASSISTANT: Sorry, there is no reservation found under your name.

USER: It's ok.

ASSISTANT: Thank you for reaching us.

USER: You are welcome.