You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello.

USER: I am Brandon Anderson.

ASSISTANT:  How can I assist you?

USER: I want to cancel my recent reservation due to some health issues. Can you aid me?

ASSISTANT: Ok, please wait.

USER: Sure.

ASSISTANT:  sorry, no reservation found on your name.

USER: Ok, not an issue. Thanks for your assistance.

ASSISTANT:  Thank you for opting us.