You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: Brandon Martin here. I want to cancel my ticket as I am sick.

ASSISTANT: Sure, I am here to help you.

USER: Ok.

ASSISTANT: Please hold on, while I will check in the previous list.

USER: Sure.

ASSISTANT: Thanks for being patient, there is no active reservation found on your name.

USER: No problem, thank you.

ASSISTANT: Thank you for contacting us, hope to serve you again.