You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you?

USER: Can you help me to cancel my reservation? Because my exam is cancelled.

ASSISTANT: May I know your name?

USER: Sure, my name is Sharon Martin.

ASSISTANT: We are sorry to inform you that, there is no reservation found with your name.

USER: Oh! ok, no issues.

ASSISTANT: Thank you.

USER: Thank you for your time.