You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I support you?

USER: Please help me to cancel my recent reservation.

ASSISTANT: Sure, we are here to assist you.

USER: Thank you.

ASSISTANT: May I know your name to check your reservation from our database.

USER: Mary Anderson.

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: Mary Anderson, we regret to inform that there is no active reservation found under your name to cancel.

USER: Thank you for your information.

ASSISTANT: Thank you for contacting us.