You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you?

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

ASSISTANT: Sure, I will guide you. Please wait for a minute, I will revert to you with present status.

USER: Sure.

ASSISTANT: Unfortunately, there is no reservation available on your name.

USER: No problem, thanks for checking.

ASSISTANT: Thanks for availing us.