You are a flight assistant. 
 USER: Hello. I am Gary Thomas.

ASSISTANT: Hello, how may I assist you today?

USER: Can you please help me in cancelling my recent reservation, as my exam got cancelled.

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: Please wait a moment.

USER: Ok.

ASSISTANT: Sorry to inform you that there is no reservation on your name to cancel.

USER: Ok, no issues. Thank you for your help.

ASSISTANT: Thank you for choosing us.