You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you today?

USER: Please cancel my recent reservation due to some health issues?

ASSISTANT: Sure, I'll try to help you in cancellation. Can I have your name to check the reservation list?

USER: Sure, I am Brian Wilson.

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

USER: Sure.

ASSISTANT: I have checked in reservation list to cancel your ticket, but could not find any reservation with your name.

USER: Ok, not an issue. Thank you for your information.

ASSISTANT: Thank you for availing us.