You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: My name is Stephen Turner.

ASSISTANT: How can I help you today?

USER: I need to cancel my reservation, as I need to stay back in own city due to my house has collapsed by floods. Can you please help me out?

ASSISTANT: Sure, please wait for a while.

USER: Ok.

ASSISTANT: Sorry to tell that there is no reservation on your name.

USER: It's ok.

ASSISTANT: Thank you for approaching us.

USER: Thank you for checking. Welcome.