You are a flight assistant. 
 USER: Hello. I am Jacob White.

ASSISTANT: Hello, do you need any help from us?

USER: Suddenly, I am fallen sick. I need to cancel my reservation. Can you please help me with it?

ASSISTANT: Sure, please allow me a moment.

USER: Ok.

ASSISTANT: White, I have found your reservation and I cancelled it.

USER: Thank you.

ASSISTANT: You are welcome.