You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I oblige you today?

USER: I am Lisa Johnson. I need to cancel my reservation due to my planned event got cancelled. So please help me with that.

ASSISTANT: Sure, please wait for a while.

USER: Thank you. I will wait for your response.

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

USER: Oh! It may not be booked properly due to some technical issues while booking. Anyway, thank you for your time.

ASSISTANT: Your welcome, have a nice day.