You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you today?

USER: Due to my health problem I want to cancel my reservation, can you please help me in that?

ASSISTANT: Sure, I can help you with that. Please provide me your good name.

USER: Myself Anna Davis.

ASSISTANT: Ok, please wait for a while.

USER: Ok.

ASSISTANT: Anna Davis, there is no active reservation found under your name to do cancellation.

USER: Ok, no problem in that. Any way thank you.

ASSISTANT: Thank you for choosing us.