You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I want to cancel my reservation, so please help me in the cancellation.

ASSISTANT: Sure, may I know your name please?

USER: Myself Brenda Turner.

ASSISTANT: I am sorry no reservation found on your name?

USER: Not an issue. Thank you.

ASSISTANT: Thank you for choosing us.