You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you?

USER: I need to cancel my reservation as my farewell party got cancelled. Can you help me?

ASSISTANT: Sure, just a moment please.

USER: Sure, my name is Karen Evans.

ASSISTANT: I have found your reservation and cancelled successfully.

USER: Thanks for your service.

ASSISTANT: Thank you for choosing us.