You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: Due to an emergency, I want to cancel my reservation. Can you please help me with it?

ASSISTANT: Sure, I will help you. Can I have your name to check the reservation status?

USER: Timothy Wilson here.

ASSISTANT: Please, wait a minute.

USER: Ok.

ASSISTANT: Thank you for waiting, we found a reservation on your name. Shall I cancel it?

USER: Yes, you can.

ASSISTANT: Your ticket has been cancelled successfully.

USER: Thank you.

ASSISTANT: Thank you for choosing us.