You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you today?

USER: I would like to cancel my reservation which was made on the name of Brian Nelson due to some health issues. Can you hep me with it?

ASSISTANT: Sure, we will help you with cancellation. Please wait for a while.

USER: Sure.

ASSISTANT: Thanks for waiting, there was no reservation found on your specified name.

USER: That's ok, thank you.

ASSISTANT: Thank you for connecting with us.