You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you?

USER: I am Barbara White want to cancel my reservation owing an emergency. Can you help me in cancelling?

ASSISTANT: Sure. May I know your name?

USER:  I have already provided.

ASSISTANT: Sorry, Please wait.

USER:  Ok.

ASSISTANT: Thanks for waiting.

USER:  Thank you for availing us.

ASSISTANT: There is no reservation found on your name.

USER: Thank you.

ASSISTANT: Thank you.