You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you?

USER: I am Christopher Perez. I need to cancel my reservation due to some issues, can you help me out?

ASSISTANT: Sure, I am here to help you to cancel the ticket.

USER: Sure, take your own time.

ASSISTANT: Can you please wait a minute?

USER: Ok.

ASSISTANT: Sorry to inform you that, there is no active reservation found with your name to cancel the ticket.

USER: That's ok, not an issue. Thank you.

ASSISTANT: Thank you for reaching us.