You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you?

USER: I need to cancel my reservation due to some personal issues.So can you help me with cancellation of my reservation?

ASSISTANT: Sure, we are happy to help you. May I know your good name to proceed further?

USER: I am Samantha Johnson.

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

USER: Thank you for your kind service.

ASSISTANT: Thank you for contacting us.