You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you today?

USER: I would like to cancel my reservation as I am leaving for delegates meet, can you please help me out?

ASSISTANT: Sure, can I know your name to check with the details.

USER: Larry Lewis here.

ASSISTANT: Please wait.

USER: Sure.

ASSISTANT: Your previous reservation was found and successfully cancelled.

USER: Ok , thank you for your services.

ASSISTANT: Thank you for reaching our service.