You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Catherine Parker.

ASSISTANT: How may I help you?

USER: I would like to cancel my reservation as I am leaving for delegates meet, can you please help me out?

ASSISTANT: Sorry to say, there is no reservation on your name in our database.

USER: Ok no problem, thank you for your services.

ASSISTANT: Thank you for opting us.