You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I want to spend some more days with my family, so I want to cancel my recent reservation.

ASSISTANT: That's good to hear from you. May I know your name for cancelling your reservation?

USER: Sure, I am Catherine Roberts.

ASSISTANT: Sorry to inform you, there is no reservation found under your name Catherine Roberts.

USER: Ok, no problem.

ASSISTANT: Thank you for choosing our agency, hope you keep booking from our agency in future as well.

USER: Thank you for your information.

ASSISTANT: You are welcome.