You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you today?

USER: I have planned to attend my cousin's birthday party but my manager didn't provide me leaves, So I want to cancel my reservation. Can you help me with that?

ASSISTANT: Sure, I will help you. May I know your name?

USER: My name is Matthew Parker.

ASSISTANT: Sorry, we could not found any reservation on your name.

USER: No worries, thank you.

ASSISTANT: Thank you for opting us.