You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I aid you today?

USER: Please cancel my reservation, As I need to stay back at my home due to my sudden illness and I am unable to travel. Can you help me with that?

ASSISTANT: Sure, may I know your good name?

USER: Kenneth Lee, is my name.

ASSISTANT: There is no active reservation found on your name.

USER: Ok, Not an issue. Thanks for your kind information.

ASSISTANT: Thank you.