You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I guide you?

USER: I would like to cancel my reservation as I got invited to attend a party. Can you help me?

ASSISTANT: Sure, I will help you. May I know your name please to check your reservation status?

USER: My name is Samantha Turner.

ASSISTANT: Samantha, your reservation has been cancelled successfully.

USER: Thank you for your service.

ASSISTANT: Thank you for choosing us.