You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I have to cancel my previous flight ticket booking, can you please help me with cancellation?

ASSISTANT: Sure, please let me know your name.

USER: Thank you so much for accepting my request and my name is Robert Hall.

ASSISTANT: Please give me a moment.

USER: Sure.

ASSISTANT: Robert Hall. We have found a reservation by your name and we cancelled it.

USER: Thank you so much for cancelling my previous flight ticket booking.

ASSISTANT: Thank you for reaching us.

USER: Welcome.