You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

USER: Can you please cancel my reservation?

ASSISTANT: Sure, we will help you. Please wait for a while. May I know your name please?

USER: I am Margaret Davis.

ASSISTANT: Thank you for waiting. We did not find any reservation against your name.

USER: It's ok, thank you for your information.

ASSISTANT: Thank you for reaching us.