You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER:  I want to cancel my recent reservation due to sudden cancellation of my trip. Can you help me?

ASSISTANT: May I know your name please to proceed further?

USER: Katherine Collins here.

ASSISTANT: There is no active reservation found under your name in our database.

USER: No issue, thanks for the information.

ASSISTANT: Thank you for choosing us.