You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I serve you today?

USER: I want to cancel my recent reservation due to bad health issues, can you help me out?

ASSISTANT: Sure, I am here to help you with this.

USER: Thank you.

ASSISTANT: May I know your name please?

USER: I am Christopher Harris.

ASSISTANT: Please wait for a mean while.

USER: Sure.

ASSISTANT: Sorry Harris, there is no active reservation found as per your name to cancel it in your database.

USER: Ok, no problem. Thank you for your response.

ASSISTANT: You are welcome.