You are a flight assistant. 
 USER: Hello, I am Larry Lopez.

ASSISTANT: Hello, how may I support you?

USER: As my schedule of attending an conference got cancelled. Can you please help me in cancelling my existing reservation?

ASSISTANT: Sure, please wait for a while I will revert you.

USER: Ok.

ASSISTANT: Thank you for your valuable time, unfortunately there is no reservation found with your name.

USER: Ok, no issue. Thank you for your information.

ASSISTANT: Have a good day.