You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you today?

USER: I am Brenda Phillips. Owing to an emergency, I want to cancel my reservation. So please help me in the cancellation.

ASSISTANT: Sure, I will help you with that. Please wait a while.

USER: Sure.

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: Not an issue. Thank you.

ASSISTANT: Thank you for reaching us.