You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: due to some financial issues, I would like to cancel my recent reservation. Please help me out.

ASSISTANT: Sure, may I know your name please?

USER: My name is William Lee.

ASSISTANT: Ok, please wait for a moment.

USER: Sure, take your time.

ASSISTANT: Sorry, there was no reservation found with your given name.

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

ASSISTANT: Thank you for opting us.