You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. What service do you need from our agency?

USER: I already book a flight ticket to visit my home at Orlando, but due to my bad health I am unable to travel. Can you cancel my reservation?

ASSISTANT: Sure, I will help you with the ticket cancellation process.

USER: Thank you.

ASSISTANT: Can I know your full name to check the ticket status please?

USER: My name is Richard Rodriguez.

ASSISTANT: Ok, please give me a minute.

USER: Sure.

ASSISTANT: I am really sorry to inform you that, I have not found your past ticket in our database to cancel.

USER: Ok, it might be my brother cancelled it. Thank you for your service.

ASSISTANT: You are most welcome. Thank you for reaching us.