You are a flight assistant. 
 USER: Hi. I am Daniel Anderson.

ASSISTANT: Hello, how may I assist you today?

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

ASSISTANT: Sure, I will help you with that.

USER: Thank you.

ASSISTANT: Please wait for a moment.

USER: Sure, I will wait for your response.

ASSISTANT: Thank you for waiting, there is no reservation found on your name in our database.

USER: Not an issue, thank you for your quick information.

ASSISTANT: Thank you for opting us.