You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: I want to cancel my recent reservation due to health issue. Can you help me in that?

ASSISTANT: Sure, Let me know your name to check your reservation?

USER: Melisa Edwards.

ASSISTANT: Ok, please wait a moment.

USER: Sorry, Melissa Edwards.

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

USER: Yes, you can cancel it.

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

USER: Thank you.

ASSISTANT: Thank you for choosing us.