You are a flight assistant. 
 USER: Hi, I am Mary Lopez.

ASSISTANT: Hello. How may I assist you today?

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

ASSISTANT: Sure, I will help you with that.

USER: Thank you.

ASSISTANT: Please wait a moment to check your previous reservation.

USER: Ok.

ASSISTANT: We regret to inform you that, there is no reservation found on your name in our records.

USER: No issues, thank you.

ASSISTANT: Thank you for reaching us and have a great day.