You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Justin Harris.

ASSISTANT: How may I support you today?

USER: Can you please help me in cancelling my recent reservation?

ASSISTANT: Sure, I'll help you in cancellation.

USER: Ok.

ASSISTANT: Please wait a moment I will check the reservation status.

USER: Ok, sure.

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

USER: Ok, fine thank you for checking.

ASSISTANT: Thank you for opting us.