You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I aid you today?

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

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: May I know on whose name the ticket has been reserved formerly?

USER: I am Christine Perez.

ASSISTANT: Sorry Christine Perez, there are no flights reserved on your given name formerly.

USER: Ok, not an issue. Thank you.

ASSISTANT: Welcome, thank you for choosing us. Have a great day.