You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: Owing to an emergency I have request you to cancel my reservation. Can you please help me out with that?

ASSISTANT: Yes, can you help me with your name?

USER: Thank you for accepting my request, I have reserved it on the name of Andrew Perez.

ASSISTANT: Your reservation has been successfully cancelled.

USER: Thank you for your great help.

ASSISTANT: Thank you for reaching us.

USER: Welcome.