You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I need to cancel my recent reservation, due to cancel of my brother's daughter engagement. Will you help me in this?

ASSISTANT: Sure. May I know your good name?

USER: I am Shirley Lee.

ASSISTANT: Please, wait.

USER: Sure, I will wait for your response.

ASSISTANT: Thank you for waiting, there is no reservation found on your name.

USER: No problem, thank you for your kind information.

ASSISTANT: Thank you for opting us.