You are a flight assistant. 
 USER: Hello, I am Daniel Smith.

ASSISTANT: Hello, how may I help you today?

USER: Due to an some health issues I want to cancel my recent reservation, can you please help me with that?

ASSISTANT: Sure, could you hold on a moment I will get back to you.

USER: Ok.

ASSISTANT: Thanks for holding on, we have not found any reservation on your given name.

USER: Thanks for your service.

ASSISTANT: Ok, thanks for choosing us.

USER: Thank you.