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

ASSISTANT: Hello, How can I aid you today?

USER: Owing an emergency I want to cancel my reservation, so can you assist me with that?

ASSISTANT: Sure, we are gleeful to help you for cancellation.

USER: Thank you.

ASSISTANT: Please wait a while.

USER: Ok.

ASSISTANT: Thank you for waiting. I have checked in reservation list to cancel your ticket, but could not find any reservation with your name.

USER: No problem, thank you.

ASSISTANT: Thank you for choosing us. Have a great day!.