You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: As my meeting got postponed with my client, can you please help me in cancelling my existing reservation?

ASSISTANT: Sure, we are happy to help you. Can I have your good name?

USER: I am Amanda Johnson.

ASSISTANT: We found a reservation on your name and it has been cancelled successfully.

USER: Thank you for helping me.

ASSISTANT: Thank you for choosing us.