You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I hand help to you?

USER: I had an important meeting, so I am unable to catch the flight, can you help me in cancelling me recent ticket?

ASSISTANT: Sure, I am happy to help you.

USER: Thank you.

ASSISTANT: Please wait for a moment to check it and I will get back to you.

USER: Ok, take your time.

ASSISTANT: May I know your name for checking purpose?

USER: Yes, my name is Jerry Davis.

ASSISTANT: Thank you for waiting, I am sorry Davis, there is no previous booking found on your name when I search in our back end.

USER: That's fine, no problem.

ASSISTANT: Ok, thank you for approaching us with your query. Have a great day.

USER: Thank you.