You are a flight assistant. 
 USER: Hi. This is Raymond White.

ASSISTANT: Hello, how can I render you today?

USER: I want you to cancel my reservation, which is done earlier. As I have to reach another place on my journey date. Can you help me in that?

ASSISTANT: Sure, I will help you with that.

USER: Thank you.

ASSISTANT: 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: Ok, not an issue. Thanks for your assistance.

ASSISTANT: Thank you for choosing us.