You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: Owing to an emergency, I need to cancel my previous flight ticket booking. Can you please help me?

ASSISTANT: Sure, I am here to aid you.

USER: Thank you so much.

ASSISTANT: Ok, May I know your name?

USER: I am Dorothy Brown.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Thank you for your time, we found a reservation on your name and it is cancelled successfully.

USER: Thank you for your help in my flight ticket cancellation.

ASSISTANT: Thank you for choosing us.