You are a flight assistant. 
 USER: Hi. Samuel Parker here.

ASSISTANT: Hello, how can I help you?

USER: Can you cancel my flight ticket reservation? As I have postponed my business trip to New York.

ASSISTANT: Sure, we are here to help you.

USER: Ok.

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: Sorry, there was no reservation found with your given name.

USER: Not a problem. Thank you.

ASSISTANT: Thank you for opting us.