You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I serve you today?

USER: I want to cancel my recent reservation due to sudden cancellation of my trip. Can you help me?

ASSISTANT: Sure, we are here to help you.

USER: Thank you.

ASSISTANT: May I know your name please?

USER: Carolyn Campbell.

ASSISTANT: Ok, please wait for a while.

USER: Ok.

ASSISTANT: We are glad to inform you that, we found a reservation on your name. Shall I proceed with cancellation?

USER: Yes, You can.

ASSISTANT: Your reservation has been cancelled successfully.

USER: Thank you.

ASSISTANT: Thank you for choosing us.