You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello,.

USER: I need to cancel my reservation as my examinations got cancelled. Can you help me with that?

ASSISTANT: May I know your good name?

USER: My name is Gregory Hernandez.

ASSISTANT: Sure,please wait for a minute.

USER: Ok.

ASSISTANT: Sorry to inform that there is no reservation found with your name.

USER: Thank you for your response.

ASSISTANT: Thank you.