You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: Katherine Collins here. When I was booking a ticket it is with less fare but after some days I got a message that your ticket fare is increased due to occasional days, so I would like to cancel my ticket. Can you please help me out with cancelling of my reservation?

ASSISTANT: Sure, I will help you.

USER: Thank you.

ASSISTANT: Please allow me a moment.

USER: Sure, take your time.

ASSISTANT: I have found your reservation and I cancelled it.

USER: That's great, thank you for your help.

ASSISTANT: Thank you for choosing us, have a great day.