You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. Do you need any assistance from us?

USER: I want to cancel my recent reservation because of my health issues. Can you please help me out?

ASSISTANT: Sure, I will help you. Can you please tell me your name?

USER: Thank you, my name is Robert Baker.

ASSISTANT: Ok, I have found your reservation. Can I cancel your ticket?

USER: Yes, you can cancel my ticket.

ASSISTANT: Ok. Your ticket is cancelled.

USER: Thank you for your help.

ASSISTANT: Thank you for approaching us.