You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I just need your help in cancelling my recent reservation. Please help me in cancelling process.

ASSISTANT: That's sad, may I know your name to check with the status of your previous booking?

USER: Sure. Myself Kimberly Lee.

ASSISTANT: Sorry to inform you, their is no previous reservation found by your name.

USER: That's ok.

ASSISTANT: Kimberly Lee, thank you for reaching our agency.

USER: Thank you for your service.

ASSISTANT: Have a great day.