You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: I am Kimberly Johnson. I want to cancel my reservation, due to my health issues. So please help me in the cancellation.

ASSISTANT: Sure, please wait a minute.

USER: Ok.

ASSISTANT: We found your reservation, can I cancel it?

USER: Yes, you can proceed to cancel.

ASSISTANT: Your ticket has been cancelled.

USER: Thank you for your help.

ASSISTANT: Thank you for availing us.