You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you the best today?

USER: Help me in cancelling my reservation?

ASSISTANT: Sure, we are here to help you. May I know your name please?

USER: I am Sarah Baker.

ASSISTANT: Please stand by.

USER: Ok.

ASSISTANT: Thanks for your time, there is no active reservation found in your name.

USER: That's ok, thank you.

ASSISTANT: Thank you for availing us.