You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I address you?

USER: I am Matthew Young. Want to cancel my reservation, can you help me with it?

ASSISTANT: Sure,please wait for a while.

USER: Ok.

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

USER: That's ok, thank you for the response.

ASSISTANT: Thanks for opting us.