You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. What help do you require from us?

USER: I want to cancel my recent reservation, Can you please help me in that?

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: Thank you. My name is Mary Adams.

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: Ok, that's not a problem.

ASSISTANT: Thank you for approaching us.

USER: Thank you.