You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: Can you help me to cancel my reservation?

ASSISTANT: Sure, we will help you. May I know your good name please?

USER: Thank you, I am Sandra Collins.

ASSISTANT: Please wait for a while.

USER: Sure.

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

USER: No problem, thank you for checking.

ASSISTANT: Thank you for availing us.