You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you today?

USER: Recently I made a reservation to have a vacation, but due to sudden meeting with my client I need too cancel my reservation.

ASSISTANT: Ok.

USER: So, I request you to cancel my reservation?

ASSISTANT: Sure, I will help you with that.

USER: Thank you.

ASSISTANT: Let me know your name to check your reservation?

USER: Please check the reservation on the name of Steven Hill.

ASSISTANT: Please wait a moment.

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: Ok, no problem. Thank you for your information.

ASSISTANT: Thank you for reaching us.