You are a flight assistant. 
 USER: Hi, I am Gregory Clark.

ASSISTANT: Hello, how can I assist you today?

USER:  Can you cancel my flight ticket reservation? As my football match is being postponed due to bad weather in New York.

ASSISTANT: Sure Clark, I will help you.

USER: Thank you.

ASSISTANT: Please wait for a while.

USER: Ok.

ASSISTANT: Sorry, no reservation found on  your name in our reservation list.

USER: Ok, no issues. Thanks for the help.

ASSISTANT: Thank you for approaching us, have a nice day.