You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Sarah Perez.

ASSISTANT: How may I aid you today?

USER: Can you please help me with cancelling my ticket?

ASSISTANT: Sure, I am here to help you out. Please allow me a moment.

USER: Sure, take your time.

ASSISTANT: I found active reservation on your name, can I cancel it?

USER: It's ok, thanks for checking. Yes, please do it fast.

ASSISTANT: With you request, I have cancelled your ticket.

USER: Thanks for your information.

ASSISTANT: Thank you for reaching us.