You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

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

ASSISTANT: Sure, may I know your name?

USER: My name is Benjamin Gonzalez.

ASSISTANT: Wait a minute.

USER: Sure.

ASSISTANT: Sorry, there was no reservation found on your name.

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

ASSISTANT: Thank you for choosing us.