You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you today?

USER: Can you help me to cancel my reservation?

ASSISTANT: Sure, I am here to help you. May I know your name please?

USER: My name is Charles Roberts.

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: Sorry Charles, there is no reservation found as per your name to cancel your reservation.

USER: Ok, no issues. Thank you for your help.

ASSISTANT: You are welcome.