You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: Kimberly White here. Due to health problem, I want to cancel my reservation. Can you please help me for that?

ASSISTANT: Sure, I am here to help you. There is a reservation found on your name. Would you like to cancel?

USER: Yes please.

ASSISTANT: Your reservation has cancelled successfully.

USER: Thank you for helping me.

ASSISTANT: Most welcome.