You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you today?

USER: Wanted to cancel my ticket due to some urgency in my office, can you please help me?

ASSISTANT: Sure, I am glad to help you with that.

USER: Thank you for accepting my request.

ASSISTANT: May I know your good name?

USER: My name is Sharon Wilson.

ASSISTANT: Please wait for a minute.

USER: Ok, take your time. I can wait for your response.

ASSISTANT: Sorry to say that, there is no reservation found on your name in our database.

USER: Oh! I think my ticket is already cancelled by my brother. Anyways thank you for checking.

ASSISTANT: Thank you for approaching us.

USER: You are most welcome.