You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you for the day?

USER: I would like to cancel my current reservation due to health issue.

ASSISTANT: That's sad, can I know your name for cancelling?

USER: My name is Katherine Gonzalez.

ASSISTANT: Sorry Katherine Gonzalez, I couldn't find any reservation by your name.

USER: That's fine.

ASSISTANT: Thanks for reaching us. Have a nice day.

USER: Thank you for your information.