You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

USER: Owing to an emergency, I want to cancel my recent reservation. Can you help me out?

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

USER: Thank you. I am Benjamin Walker.

ASSISTANT: Ok, please wait for a mean while.

USER: Ok, take your time.

ASSISTANT: There is a reservation found under your name, shall I cancel it?

USER: Cancel my ticket.

ASSISTANT: Ok, your reservation has been cancelled successfully.

USER: Thank you for helping me out.

ASSISTANT: You are welcome.