You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, How can I best support you now?

USER: Owing to emergency I want to cancel my reservation, can you help me?

ASSISTANT: Sure, I am here to help you out with that. May I know your good name please to track the details?

USER: I am Melissa Robinson.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: There is a reservation found on your name, Are you sure shall I proceed for cancellation?

USER: Yes, please.

ASSISTANT: Your ticket has been cancelled successfully.

USER: Thank you for your help.

ASSISTANT: Thanks for approaching us, wish you a great day.