You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How can I aid you?

USER: I am Joshua Garcia. Can you cancel my ticket? Because I need to attend for a emergency meeting.

ASSISTANT: Sure. Wait for a while.

USER: Sure.

ASSISTANT: Thanks for waiting.

USER: Ok.

ASSISTANT: There is no reservation found on your name.

USER: Thanks for the prompt response.

ASSISTANT: Thank you.