You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you today?

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

ASSISTANT:  Sure, may I know your good name?

USER: I am Michelle Evans.

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

USER: No problem, thanks for the information.

ASSISTANT: Thank you for choosing us.