You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: I am Joseph Campbell. Owing to an emergency, I want to cancel my recent reservation.

ASSISTANT: Ok. Wait for some time I will check and get back to you.

USER: Sure.

ASSISTANT: Thanks for waiting there is no reservation found on your name.

USER: No problem, thank you.

ASSISTANT: Thanks for approaching us.