You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I be your helping hand today?

USER: Could you please help me to cancel my recent reservation?

ASSISTANT: Sure, may I know your good name?

USER: I am Carolyn Clark.

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.