You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you?

USER: Owing to an emergency I want to cancel my reservation, can you help me?

ASSISTANT: Sure, I will help you out. Please provide me your name to check the reservation details on your name.

USER: Myself Steven Green.

ASSISTANT: Please allow me a moment to check the reservation.

USER: Sure.

ASSISTANT: Sorry Green, there is no active reservation on your name.

USER: No problem, thanks for checking.

ASSISTANT: Thank you for reaching us.