You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I guide you?

USER: I want to cancel my recent reservation, due to some health issue. Can you help me?

ASSISTANT: Sure, I am here to help you with that. Can I know your name please?

USER: Thank you, I am Jeffry Lee.

ASSISTANT: Ok, please hold on for a while.

USER: Sure, take your own time.

ASSISTANT: Sorry to tell you that, I have not found any reservation with your name in our database to cancel the ticket.

USER: Ok, not an issue. Thank you for your information.

ASSISTANT: You are welcome. Thank you for approaching us.