You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, in what way shall I aid you today?

USER: I want to cancel my recent reservation, due to my sudden health issues. Can you help me in that?

ASSISTANT: Sure, we are here to assist you.

USER: Thanks for your response.

ASSISTANT: Can I know your name to check the active reservation on your name?

USER: Sarah Harris, is my name.

ASSISTANT: Please wait for a moment.

USER: Sure, make it as soon as possible.

ASSISTANT: Thank you for waiting, currently there is no reservation found on your name.

USER: Ok, not an issue. I think my brother had cancelled it earlier, but he does not informed me. Anyway, thanks for your effort.

ASSISTANT: Thank you for contacting us, hope we serve you next time.