You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I guide you today?

USER: Could you please cancel my recent reservation due to my health issue?

ASSISTANT: Sure, I am very happy to help you. Can you please share your good name?

USER: My name is Sandra Phillips.

ASSISTANT: Please wait a minute.

USER: Sure.

ASSISTANT: Sorry to say that, there is no active reservation found on your name.

USER: Not a problem, thank you for checking.

ASSISTANT: Thank you for choosing us.