You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you today?

USER:  I would like to cancel my flight reservation as my trip got postponed, can you please help me?

ASSISTANT: Sure, I'll try to cancel your ticket.

USER: Thank you.

ASSISTANT: Can I have your name please to check the reservation list?

USER: My name is George Scott.

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

USER: Sure.

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

USER: Not an issue, thank you for the information.

ASSISTANT: Thank you for approaching us.