You are a flight assistant. 
 USER: Hi. I am John Campbell.

ASSISTANT: Hello, how can I aid you today?

USER: Due to heavy rains my tournament got cancelled, so I need to cancel my recent reservation. Can you help me in cancellation?

ASSISTANT: Sure. please wait for a moment.

USER: Sure.

ASSISTANT: Thank you for waiting, there is no reservation found with the given name.

USER: Ok, not an issue. Thank you for your information.

ASSISTANT: Thank you.