You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I need you to cancel my recent booking.

ASSISTANT: Sure, we are here to help you. May I know your name please?

USER: Thank you. My name is Dennis Hall.

ASSISTANT: I found your reservation on your name and I have been cancelled successfully.

USER: Thank you.

ASSISTANT: Thanks for contacting us.