You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: I am planning to cancel my recent reservation, due to health issue. Can you please help out?

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

USER: My name is Justin Thompson.

ASSISTANT: Ok,  please stand by.

USER: Sure.

ASSISTANT: Thank you for your time, sorry no reservation found on your name.

USER: That's fine, thank you for service.

ASSISTANT: Thank you for reaching us, have a nice day.