You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I serve you today?

USER: I need to cancel my reservation as I need to stay back in my home town, can you please help me?

ASSISTANT: Sure, I will help you with that.

USER: Thank you.

ASSISTANT: May I know your good name?

USER: I am Dennis Anderson.

ASSISTANT: Ok, please wait for a minute.

USER: Ok.

ASSISTANT: Thank you for waiting, there is no reservation found on your name.

USER: OK, no problem. Thank you.

ASSISTANT: Thank you for opting us.