You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. May I know how best I can help you today?

USER: I want to cancel my recent reservation. Can you help me out?

ASSISTANT: Sure, I'll try to help you in cancellation. I need some basic information to check your ticket details, can you please tell me your full name?

USER: Donna Martinez.

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

USER: Ok, take your time.

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

USER: That's ok. Anyways, thank you.

ASSISTANT: Thank you for approaching us.