You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you?

USER: My name is Samuel Hall. Due to health issues, I would like to cancel my journey. Can you please help me?

ASSISTANT: Sure, I will help you with flight ticket cancellation. Just wait for a moment please.

USER: Ok, take your time.

ASSISTANT: Thanks for waiting, But I am sorry to say that there is no flight reservation on your name to cancel it.

USER: Its ok, no issues. Thank you for the information.

ASSISTANT: Thank you.