You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you today?

USER: Can you please help me to cancel the ticket?

ASSISTANT: Sure, I am very happy to help you with that. I need to know your name to cancel your reservation.

USER: Ok, Christopher Young here.

ASSISTANT: Sorry, no reservation is found on your name in our database.

USER: Ok, not an issue.

ASSISTANT: Thank you for opting us.

USER: Thank you for your information.