You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I am Joseph Martin, I need to cancel my reservation as my exams got cancelled. Can you please help me out?

ASSISTANT: Sure, I am here to help you. Please let me check your ticket status in our website.

USER: Thank you.

ASSISTANT: Martin, I found your reservation and cancelled it.

USER: Thank you for cancelling my reservation.

ASSISTANT: Thank you for choosing us.