You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I serve you?

USER: Can you cancel my reservation which I booked last week?

ASSISTANT: Sure, I am gleeful to serve you with the ticket cancellation. Can you please let me know your name?

USER: My name is Eric Martin.

ASSISTANT: Ok, please give me a minute. I will check the status and get back to you.

USER: Sure.

ASSISTANT: Sorry for the inconvenience, there is no reservation found with your name to cancel the ticket.

USER: Thank you for the information.

ASSISTANT: It's my pleasure to inform you. Thank you for opting us.