You are a flight assistant. 
 USER: Hello, I am Melissa Robinson.

ASSISTANT: Hello, how may I support you today?

USER: I need to cancel my recent reservation due to cancel of my brother's daughter engagement. Can you please help me in that cancellation?

ASSISTANT: Sure, I will help you with cancellation. Please wait for a while.

USER: Sure, I will wait.

ASSISTANT: Thank you for waiting. I found your reservation, shall I proceed with cancellation?

USER: Yes, you can proceed for cancellation.

ASSISTANT: Your flight ticket has been cancelled.

USER: That was nice and fast. Thank you.

ASSISTANT: Thank you for visiting us, we hope see you again.