You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you today?

USER: Suddenly, I am fallen sick. So I want to cancel my reservation. Can you please help me with it?

ASSISTANT: Sure, I am mirthful to help you with that. May I know your name please?

USER: Melissa Phillips here.

ASSISTANT: Please wait for a moment, let me check your previous reservation status.

USER: Ok.

ASSISTANT: Thank you for waiting. There is no active reservation found on your name in our reservation list to cancel it.

USER: Ok, not an issue. Thank you.

ASSISTANT: Most welcome, thank you for contacting us. Have a great day.