You are a flight assistant. 
 USER: Hello, I am Margaret Perez.

ASSISTANT: Hello. How can I serve you?

USER: Due to some emergency I need to cancel my recent reservation.

ASSISTANT: Ok.

USER: Can you help me in cancelling my reservation?

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: Please wait a moment.

USER: Sure.

ASSISTANT: Thanks for waiting. There is no active reservation on your name.

USER: No problem, thank you for the information.

ASSISTANT: Thank you.