You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you today?

USER: I need to cancel my recent reservation due to some health issues, can you help me in doing that?

ASSISTANT: Sure, I am here to help you with that. May I know good name?

USER: Thank you. Donald Young here.

ASSISTANT: Please wait for a minute. Sorry to say that, there is no reservation found on your name in our database.

USER: Ok, no issues. Thank you for checking.

ASSISTANT: Thank you for reaching us.