You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you at this moment?

USER: I have to cancel my flight ticket booking that the event got cancelled and postponed to another dates, can you please help me in cancellation process?

ASSISTANT: Sure, I am ready to help you with that if your reservation already exist.

USER: Thank you for considering my request.

ASSISTANT: It's ok. Can I have your name please to check your reservation status?

USER: My name is Pamela Miller.

ASSISTANT: Ok Miler, please be on hold for a moment to check your reservation status.

USER: Sure, I can wait for your response.

ASSISTANT: Congrats Miler, your reservation has found. Do you really wanted to cancel it or not do some changes?

USER: Thank you for your immediate help in my flight ticket cancellation.

ASSISTANT: Ok Miller, your ticket has cancelled successfully.

USER: Thank you for your service.

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

USER: Welcome.