You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, How can I assist you? May I know your good name?

USER: I am Kathleen Johnson, want to cancel my reservation due to my health issue. So, please help me in cancelling a ticket.

ASSISTANT: Sure. Wait a minute.

USER: Ok.

ASSISTANT: Thanks for waiting.

USER: Ok.

ASSISTANT: There is no reservation found with your name.

USER: Thanks for your service.

ASSISTANT: Thanks for reaching us.