You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Brenda Clark.

ASSISTANT: How may I assist you?

USER: Can you please help me in cancelling my recent reservation?

ASSISTANT: Sure, I will help you. Please wait a moment.

USER: Ok, sure.

ASSISTANT: Brenda, no reservation has been found on your name in our records.

USER: Ok, fine thank you for checking.

ASSISTANT: Thank you for reaching us.