You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you now?

USER: I want to cancel my recent reservation, can you please help me?

ASSISTANT: Ok, please mention your name to check with your previous booking.

USER: The ticket is reserved under the name Brian Harris.

ASSISTANT: I have found your reservation, please allow me to cancel it.

USER: Sure, please cancel.

ASSISTANT: Your ticket is cancelled successfully.

USER: Thank you for your help.

ASSISTANT: Thank you for choosing us.