You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you?

USER: I am Brenda Wilson, I want to cancel my reservation due to my health issue.

ASSISTANT: Sure, please give me a minute.

USER: Ok, sure please take your time.

ASSISTANT: Sorry, there is  no reservation available on your name.

USER: It's ok, it might not be confirmed at the time of booking. Anyway thank you for the help.

ASSISTANT: You are welcome.