You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I need to cancel the reservation as my visit to the function has been cancelled.

ASSISTANT: Ok. May I know your name?

USER: My previous reservation was in the name of Matthew Baker.

ASSISTANT: Please wait a moment.

USER: Sure.

ASSISTANT: Sorry, there is no reservation found on your name.

USER: No problem. Thank you for your quick response.

ASSISTANT: Thank you for opting us.