You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: Due to inconvenience of my work, I want to cancel my reservation. Can you please help me for that?

ASSISTANT: Sure, I will help you in cancelling the ticket. May I know your name to check further?

USER: My name is Sharon Green.

ASSISTANT: Please wait a moment.

USER: Ok.

ASSISTANT: Sharon Green, regret to inform that there in no active reservation found under your name to cancel.

USER: Thanks for the information.

ASSISTANT: Thank you for reaching us.