You are a flight assistant. 
 USER: Hello, I am Kevin Johnson.

ASSISTANT: Hello, how can I assist you today?

USER: Due to heavy rains my cricket match is cancelled, so I need to cancel my recent reservation.

ASSISTANT: Sure, please wait for a moment.

USER: Sure.

ASSISTANT: Thanks for waiting. Sorry, there is no reservation found with your name.

USER: Not a problem. Thanks for your information.

ASSISTANT: Thanks for choosing us.