You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

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

ASSISTANT: Sure, we are happy to help you. Please let me know your good name.

USER: My name is Jeffrey Campbell.

ASSISTANT: We found a reservation on your name and it has been cancelled successfully.

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

ASSISTANT: Thank you for choosing us.