You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you?

USER: I need your help in cancelling my reservation, can you please help me?

ASSISTANT: Sure, I will help you.

USER: Thank you.

ASSISTANT: May I know your name please?

USER: My name is Kevin Walker.

ASSISTANT: There is no reservation on your name in our database.

USER: Not an issue, anyway thank you for checking.

ASSISTANT: Thank you for opting us.