You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you today?

USER: Due to health issues, I need to cancel my recent reservation. Please help me with that.

ASSISTANT: Sure, I will help you in cancelling your ticket. Can you please help me with the name to check with the status?

USER: My name is Helen Nelson.

ASSISTANT: Please wait a moment.

USER: Ok.

ASSISTANT: Thank you for waiting. Helen Nelson, I found reservation under your name and the ticket is cancelled.

USER: Thank you for your help.

ASSISTANT: Thank you for choosing our agency.