You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today?

USER: My name is Joshua Young. Owing an emergency, I want to cancel my reservation. Can you help me for that?

ASSISTANT: Sure, we are gleeful to help you. Please wait for a while.

USER: Thank you.

ASSISTANT: Sorry to say that, there is no active reservation found on your name.

USER: That's ok, thank you for checking.

ASSISTANT: Thank you for opting us.

USER: Welcome.