You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: Myself Dennis Wilson.

ASSISTANT: Dennis, what can I do for you?

USER: I want to cancel my reservation because my friend is in hospital I need to look after him. Can you please help me?

ASSISTANT: Sure, hold on for a moment. Let me check in our data base.

USER: Ok.

ASSISTANT: Sorry Dennis, there are no flights reserved on your name.

USER: It's ok, thank you.

ASSISTANT: Thank you for choosing us. Have a good day.