You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you today?

USER: I am Jerry Roberts, I need to cancel my flight ticket due to my health issue. Can you please help me with that?

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

USER: Thank you for considering my request.

ASSISTANT: Please hold on a moment, let me check.

USER: Sure, I will wait for your response.

ASSISTANT: Thanks for your time, there is no reservation found on your name to cancel it.

USER: Not a problem, anyway thank you for the information.

ASSISTANT: Welcome Jerry Roberts, have a nice day.