You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, can you please tell me how can I assist you?

USER: I am Christine Barker, I would like to cancel my reservation which I have done under my name last week due to my health condition. Please, assist me about it.

ASSISTANT: No reservation found on your name, I'm sorry.

USER: Not an issue, it might be cancelled by my manager. Anyway thank you for the information.

ASSISTANT: Thank you.