You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I guide you today?

USER: I need to cancel my reservation as my exams got cancelled, can you please aid me in cancellation?

ASSISTANT: Sure, I am glad to help you with that.

USER: Thank you.

ASSISTANT: Can I know your name to check your previous reservation?

USER: I am Mark Phillips.

ASSISTANT: Please be on hold.

USER: Ok.

ASSISTANT: We regret to inform you that, there is no reservation found on your name in our records.

USER: Ok, no issues. Thank you.

ASSISTANT: Thank you for reaching us, have a great day.