You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, How can I help you?

USER: Can you please help me in cancelling the reservation?

ASSISTANT: Sure, May I know your good name?

USER: I am Nancy Lopez.

ASSISTANT: OK, Please wait for a moment.

USER: Sure.

ASSISTANT: Thanks for your patience, No reservation found with your specified name.

USER: OK,Thank you for your valuable information.

ASSISTANT: Thank you, I am very glad to help you.