You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you?

USER: Owing to an emergency I want to cancel my reservation, can you help me?

ASSISTANT: Sure. To cancel your reservation I need your name, please.

USER: I am Jonathan Miller.

ASSISTANT: Sorry, I can't see your reservation on my screen.

USER: No problem, thank you for checking.

ASSISTANT: Do you have any more quires please?

USER: No, thanks.

ASSISTANT: Thank you and have a nice day.