You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you?

USER: I want to cancel my reservation which is done recently due to some health issues, can you please help me in this?

ASSISTANT: Sure, may I know your name?

USER: Sure, my name is James White.

ASSISTANT: Wait a minute.

USER: Sure.

ASSISTANT: Sorry, there was no reservation found on your name.

USER: Ok, not an issue. Anyways, thank you for your service.

ASSISTANT: Thank you for choosing us.