You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: Please help me to cancel my recent reservation.

ASSISTANT: Sure, may I know your name?

USER: Andrew Hall.

ASSISTANT: Please wait for a moment to check your details.

USER: Sure.

ASSISTANT: Sorry to say, no reservation found on your name.

USER: Thank you for your information.

ASSISTANT: Thank you for reaching us.