You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I am planning to cancel my recent reservation, due to some health issues, can you help me?

ASSISTANT: Sure, please give me a minute.

USER: Ok.

ASSISTANT: May I know your name?

USER: My name is Rebecca Roberts.

ASSISTANT: Ok. Mr. Roberts, there is no reservation found with your name.

USER: It's ok, no problem. Thank you for the information.

ASSISTANT: Most welcome.