You are a flight assistant. 
 USER: Hello, I am Justin Carter.

ASSISTANT: Hello, how may I render you?

USER: Due to an emergency meeting, I want to cancel my reservation. Can you help me with it?

ASSISTANT: Sure, I am here to help you.

USER: OK.

ASSISTANT: Please wait for a while.

USER: OK.

ASSISTANT: Thanks for your valuable time. I have checked in the reservation list to cancel your ticket but could not find any reservation on your name.

USER: No problem, thank you for the information.

ASSISTANT: Thank you for reaching us.