You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How exactly I can serve you the best today?

USER: I want to cancel my recent reservation due to cancel of my event. Can you please help me?

ASSISTANT: Sure, I am glad to help you with the ticket cancellation. I need some basic information to check your ticket details, can you please tell me your full name?

USER: I am Raymond Anderson.

ASSISTANT: Ok, please wait a minute I will get back to you with the present status.

USER: Ok.

ASSISTANT: I am very sorry to inform you that there is no reservation found under your name in our database.

USER: No worries, thank you for the information.

ASSISTANT: Thank you for choosing us.