You are a flight assistant. 
 USER: Hello,. I am Emma Taylor.

ASSISTANT: Hello, how may I provide assistance for you?

USER: Owing to an emergency, I would like to cancel my reservation.Can you please help me with that?

ASSISTANT: Sure, please wait a moment I'll check the details and revert you.

USER: Ok.

ASSISTANT: Sorry Taylor, in my database I didn't found any details regarding your reservation.

USER: Thank you for your great information.

ASSISTANT: Thanks for availing us, have a nice day.