You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you today?

USER: Due to my ill health, I would like to cancel my recent reservation. Please help me out.

ASSISTANT: Sure, I will help you with that. Let me know your name to check your reservation?

USER: My name is Sarah Wright.

ASSISTANT: Ok, please wait a moment.

USER: Sure, take your time.

ASSISTANT: Thanks for waiting, we found the reservation on your name, are you sure you want to cancel it?

USER: Yes, I want to cancel my reservation.

ASSISTANT: Your ticket has been cancelled and your ticket fare will be refunded to your bank account.

USER: Thank you for your help.

ASSISTANT: Thank you for choosing us.